121312232202 has 32 divisors (see below), whose sum is σ = 279309094272. Its totient is φ = 34407638784.

The previous prime is 121312232117. The next prime is 121312232227. The reversal of 121312232202 is 202232213121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10535803 + ... + 10547310.

It is an arithmetic number, because the mean of its divisors is an integer number (8728409196).

Almost surely, 2^121312232202 is an apocalyptic number.

121312232202 is an abundant number, since it is smaller than the sum of its proper divisors (157996862070).

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

121312232202 is a wasteful number, since it uses less digits than its factorization.

121312232202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21083262.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121312232202 its reverse (202232213121), we get a palindrome (323544445323).

The spelling of 121312232202 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred thirty-two thousand, two hundred two".