121211020122 has 16 divisors (see below), whose sum is σ = 242702956800. Its totient is φ = 40356853952.

The previous prime is 121211020093. The next prime is 121211020141. The reversal of 121211020122 is 221020112121.

It is a super-2 number, since 2×121211020122² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11699247 + ... + 11709602.

It is an arithmetic number, because the mean of its divisors is an integer number (15168934800).

Almost surely, 2^121211020122 is an apocalyptic number.

121211020122 is an abundant number, since it is smaller than the sum of its proper divisors (121491936678).

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

121211020122 is a wasteful number, since it uses less digits than its factorization.

121211020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23409717.

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

Adding to 121211020122 its reverse (221020112121), we get a palindrome (342231132243).

The spelling of 121211020122 in words is "one hundred twenty-one billion, two hundred eleven million, twenty thousand, one hundred twenty-two".