121931060202 has 48 divisors (see below), whose sum is σ = 319684802112. Its totient is φ = 32788183680.

The previous prime is 121931060197. The next prime is 121931060261. The reversal of 121931060202 is 202060139121.

121931060202 is a `hidden beast` number, since 1 + 21 + 9 + 31 + 0 + 602 + 0 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28459824 + ... + 28464107.

It is an arithmetic number, because the mean of its divisors is an integer number (6660100044).

Almost surely, 2^121931060202 is an apocalyptic number.

121931060202 is an abundant number, since it is smaller than the sum of its proper divisors (197753741910).

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

121931060202 is a wasteful number, since it uses less digits than its factorization.

121931060202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56923963 (or 56923960 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

Adding to 121931060202 its reverse (202060139121), we get a palindrome (323991199323).

The spelling of 121931060202 in words is "one hundred twenty-one billion, nine hundred thirty-one million, sixty thousand, two hundred two".