121211202012202 has 16 divisors (see below), whose sum is σ = 181906719160320. Its totient is φ = 60575632188048.

The previous prime is 121211202012143. The next prime is 121211202012283. The reversal of 121211202012202 is 202210202112121.

It is a self number, because there is not a number n which added to its sum of digits gives 121211202012202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75154303 + ... + 76750189.

It is an arithmetic number, because the mean of its divisors is an integer number (11369169947520).

Almost surely, 2^{121211202012202} is an apocalyptic number.

121211202012202 is a deficient number, since it is larger than the sum of its proper divisors (60695517148118).

121211202012202 is a wasteful number, since it uses less digits than its factorization.

121211202012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614645.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121211202012202 its reverse (202210202112121), we get a palindrome (323421404124323).

The spelling of 121211202012202 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred two million, twelve thousand, two hundred two".