121312202202202 has 16 divisors (see below), whose sum is σ = 200366118169632. Its totient is φ = 54626565136720.

The previous prime is 121312202202187. The next prime is 121312202202239. The reversal of 121312202202202 is 202202202213121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25767245353 + ... + 25767250060.

It is an arithmetic number, because the mean of its divisors is an integer number (12522882385602).

Almost surely, 2^{121312202202202} is an apocalyptic number.

121312202202202 is a deficient number, since it is larger than the sum of its proper divisors (79053915967430).

121312202202202 is a wasteful number, since it uses less digits than its factorization.

121312202202202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51534495533.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121312202202202 its reverse (202202202213121), we get a palindrome (323514404415323).

The spelling of 121312202202202 in words is "one hundred twenty-one trillion, three hundred twelve billion, two hundred two million, two hundred two thousand, two hundred two".