121021022122 has 48 divisors (see below), whose sum is σ = 248087079072. Its totient is φ = 43524038880.

The previous prime is 121021022107. The next prime is 121021022131. The reversal of 121021022122 is 221220120121.

It is a happy number.

It is a super-2 number, since 2×121021022122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021022096 and 121021022105.

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, 4303848 + ... + 4331875.

It is an arithmetic number, because the mean of its divisors is an integer number (5168480814).

Almost surely, 2^121021022122 is an apocalyptic number.

121021022122 is an abundant number, since it is smaller than the sum of its proper divisors (127066056950).

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

121021022122 is a wasteful number, since it uses less digits than its factorization.

121021022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635763 (or 8635756 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 121021022122 its reverse (221220120121), we get a palindrome (342241142243).

The spelling of 121021022122 in words is "one hundred twenty-one billion, twenty-one million, twenty-two thousand, one hundred twenty-two".