202120121204 has 12 divisors (see below), whose sum is σ = 372326539200. Its totient is φ = 95741110008.

The previous prime is 202120121201. The next prime is 202120121233. The reversal of 202120121204 is 402121021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120121201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329737564 + ... + 1329737715.

It is an arithmetic number, because the mean of its divisors is an integer number (31027211600).

Almost surely, 2^202120121204 is an apocalyptic number.

It is an amenable number.

202120121204 is a deficient number, since it is larger than the sum of its proper divisors (170206417996).

202120121204 is a wasteful number, since it uses less digits than its factorization.

202120121204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659475302 (or 2659475300 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202120121204 its reverse (402121021202), we get a palindrome (604241142406).

The spelling of 202120121204 in words is "two hundred two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred four".