121021210100122 has 16 divisors (see below), whose sum is σ = 182765084337000. Its totient is φ = 60099581698560.

The previous prime is 121021210100111. The next prime is 121021210100207. The reversal of 121021210100122 is 221001012120121.

It can be written as a sum of positive squares in 4 ways, for example, as 55244746847761 + 65776463252361 = 7432681^2 + 8110269^2 .

It is a super-2 number, since 2×121021210100122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121021210100096 and 121021210100105.

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, 12940347 + ... + 20235982.

Almost surely, 2^{121021210100122} is an apocalyptic number.

121021210100122 is a deficient number, since it is larger than the sum of its proper divisors (61743874236878).

121021210100122 is a wasteful number, since it uses less digits than its factorization.

121021210100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33188721.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121021210100122 its reverse (221001012120121), we get a palindrome (342022222220243).

The spelling of 121021210100122 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred ten million, one hundred thousand, one hundred twenty-two".