121031321010122 has 4 divisors (see below), whose sum is σ = 181546981515186. Its totient is φ = 60515660505060.

The previous prime is 121031321010097. The next prime is 121031321010161. The reversal of 121031321010122 is 221010123130121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 119791908612601 + 1239412397521 = 10944949^2 + 1113289^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121031321010094 and 121031321010103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30257830252529 + ... + 30257830252532.

Almost surely, 2^{121031321010122} is an apocalyptic number.

121031321010122 is a deficient number, since it is larger than the sum of its proper divisors (60515660505064).

121031321010122 is an equidigital number, since it uses as much as digits as its factorization.

121031321010122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60515660505063.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 121031321010122 its reverse (221010123130121), we get a palindrome (342041444140243).

The spelling of 121031321010122 in words is "one hundred twenty-one trillion, thirty-one billion, three hundred twenty-one million, ten thousand, one hundred twenty-two".