1012222102220 has 96 divisors (see below), whose sum is σ = 2449388253312. Its totient is φ = 344193712128.

The previous prime is 1012222102207. The next prime is 1012222102223. The reversal of 1012222102220 is 222012222101.

It is a happy number.

It is a super-2 number, since 2×1012222102220² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012222102223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8684972 + ... + 8800748.

It is an arithmetic number, because the mean of its divisors is an integer number (25514460972).

Almost surely, 2^{1012222102220} is an apocalyptic number.

1012222102220 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 1012222102220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1224694126656).

1012222102220 is an abundant number, since it is smaller than the sum of its proper divisors (1437166151092).

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

1012222102220 is a wasteful number, since it uses less digits than its factorization.

1012222102220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116307 (or 116305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1012222102220 its reverse (222012222101), we get a palindrome (1234234324321).

The spelling of 1012222102220 in words is "one trillion, twelve billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty".