121221101202 has 32 divisors (see below), whose sum is σ = 260632166400. Its totient is φ = 37465870608.

The previous prime is 121221101179. The next prime is 121221101207. The reversal of 121221101202 is 202101122121.

It is not an unprimeable number, because it can be changed into a prime (121221101207) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11306802 + ... + 11317517.

It is an arithmetic number, because the mean of its divisors is an integer number (8144755200).

Almost surely, 2^121221101202 is an apocalyptic number.

121221101202 is an abundant number, since it is smaller than the sum of its proper divisors (139411065198).

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

121221101202 is a wasteful number, since it uses less digits than its factorization.

121221101202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22624390.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121221101202 its reverse (202101122121), we get a palindrome (323322223323).

The spelling of 121221101202 in words is "one hundred twenty-one billion, two hundred twenty-one million, one hundred one thousand, two hundred two".