121311152202 has 32 divisors (see below), whose sum is σ = 245082931200. Its totient is φ = 40027542768.

The previous prime is 121311152189. The next prime is 121311152203. The reversal of 121311152202 is 202251113121.

It is not an unprimeable number, because it can be changed into a prime (121311152203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 747249 + ... + 894987.

It is an arithmetic number, because the mean of its divisors is an integer number (7658841600).

Almost surely, 2^121311152202 is an apocalyptic number.

121311152202 is an abundant number, since it is smaller than the sum of its proper divisors (123771778998).

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

121311152202 is a wasteful number, since it uses less digits than its factorization.

121311152202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149130.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 121311152202 its reverse (202251113121), we get a palindrome (323562265323).

The spelling of 121311152202 in words is "one hundred twenty-one billion, three hundred eleven million, one hundred fifty-two thousand, two hundred two".