121313211210122 has 16 divisors (see below), whose sum is σ = 182814698774760. Its totient is φ = 60375123949248.

The previous prime is 121313211210029. The next prime is 121313211210127. The reversal of 121313211210122 is 221012112313121.

It can be written as a sum of positive squares in 4 ways, for example, as 89237288009401 + 32075923200721 = 9446549^2 + 5663561^2 .

It is a super-2 number, since 2×121313211210122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121313211210127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34748333 + ... + 38079824.

Almost surely, 2^{121313211210122} is an apocalyptic number.

121313211210122 is a deficient number, since it is larger than the sum of its proper divisors (61501487564638).

121313211210122 is a wasteful number, since it uses less digits than its factorization.

121313211210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72832025.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 121313211210122 its reverse (221012112313121), we get a palindrome (342325323523243).

The spelling of 121313211210122 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred eleven million, two hundred ten thousand, one hundred twenty-two".