121311121210122 has 16 divisors (see below), whose sum is σ = 242743735805472. Its totient is φ = 40416791505840.

The previous prime is 121311121210121. The next prime is 121311121210141. The reversal of 121311121210122 is 221012121113121.

It is not an unprimeable number, because it can be changed into a prime (121311121210121) 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, 5062211404 + ... + 5062235367.

It is an arithmetic number, because the mean of its divisors is an integer number (15171483487842).

Almost surely, 2^{121311121210122} is an apocalyptic number.

121311121210122 is an abundant number, since it is smaller than the sum of its proper divisors (121432614595350).

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

121311121210122 is a wasteful number, since it uses less digits than its factorization.

121311121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10124448773.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 121311121210122 its reverse (221012121113121), we get a palindrome (342323242323243).

The spelling of 121311121210122 in words is "one hundred twenty-one trillion, three hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".