121211022122 has 16 divisors (see below), whose sum is σ = 188102109600. Its totient is φ = 58510675440.

The previous prime is 121211022089. The next prime is 121211022167. The reversal of 121211022122 is 221220112121.

It is a super-2 number, since 2×121211022122² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121211022122.

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, 649097 + ... + 814707.

It is an arithmetic number, because the mean of its divisors is an integer number (11756381850).

Almost surely, 2^121211022122 is an apocalyptic number.

121211022122 is a deficient number, since it is larger than the sum of its proper divisors (66891087478).

121211022122 is a wasteful number, since it uses less digits than its factorization.

121211022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178261.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121211022122 its reverse (221220112121), we get a palindrome (342431134243).

The spelling of 121211022122 in words is "one hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred twenty-two".