121022220222 has 48 divisors (see below), whose sum is σ = 276045020160. Its totient is φ = 38213468496.

The previous prime is 121022220217. The next prime is 121022220239. The reversal of 121022220222 is 222022220121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121022220195 and 121022220204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5955363 + ... + 5975649.

It is an arithmetic number, because the mean of its divisors is an integer number (5750937920).

Almost surely, 2^121022220222 is an apocalyptic number.

121022220222 is an abundant number, since it is smaller than the sum of its proper divisors (155022799938).

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

121022220222 is a wasteful number, since it uses less digits than its factorization.

121022220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37757 (or 37754 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121022220222 its reverse (222022220121), we get a palindrome (343044440343).

The spelling of 121022220222 in words is "one hundred twenty-one billion, twenty-two million, two hundred twenty thousand, two hundred twenty-two".