121312202202 has 64 divisors (see below), whose sum is σ = 283095855360. Its totient is φ = 38432826432.

The previous prime is 121312202201. The next prime is 121312202233. The reversal of 121312202202 is 202202213121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (121312202201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 116073 + ... + 506060.

It is an arithmetic number, because the mean of its divisors is an integer number (4423372740).

Almost surely, 2^121312202202 is an apocalyptic number.

121312202202 is an abundant number, since it is smaller than the sum of its proper divisors (161783653158).

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

121312202202 is a wasteful number, since it uses less digits than its factorization.

121312202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622324 (or 622318 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121312202202 its reverse (202202213121), we get a palindrome (323514415323).

The spelling of 121312202202 in words is "one hundred twenty-one billion, three hundred twelve million, two hundred two thousand, two hundred two".