121022212122 has 24 divisors (see below), whose sum is σ = 299674049376. Its totient is φ = 34577774856.

The previous prime is 121022212097. The next prime is 121022212127. The reversal of 121022212122 is 221212220121.

It is a happy number.

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 = 121022212095 and 121022212104.

It is not an unprimeable number, because it can be changed into a prime (121022212127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480246748 + ... + 480246999.

It is an arithmetic number, because the mean of its divisors is an integer number (12486418724).

Almost surely, 2^121022212122 is an apocalyptic number.

121022212122 is an abundant number, since it is smaller than the sum of its proper divisors (178651837254).

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

121022212122 is a wasteful number, since it uses less digits than its factorization.

121022212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960493762 (or 960493759 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121022212122 its reverse (221212220121), we get a palindrome (342234432243).

The spelling of 121022212122 in words is "one hundred twenty-one billion, twenty-two million, two hundred twelve thousand, one hundred twenty-two".