122101112220 has 192 divisors, whose sum is σ = 368665274880. Its totient is φ = 30130265088.

The previous prime is 122101112131. The next prime is 122101112233. The reversal of 122101112220 is 22211101221.

It is a super-2 number, since 2×122101112220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122101112220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4299307 + ... + 4327613.

It is an arithmetic number, because the mean of its divisors is an integer number (1920131640).

Almost surely, 2^122101112220 is an apocalyptic number.

122101112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122101112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184332637440).

122101112220 is an abundant number, since it is smaller than the sum of its proper divisors (246564162660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122101112220 is a wasteful number, since it uses less digits than its factorization.

122101112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28452 (or 28450 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122101112220 its reverse (22211101221), we get a palindrome (144312213441).

The spelling of 122101112220 in words is "one hundred twenty-two billion, one hundred one million, one hundred twelve thousand, two hundred twenty".