202211210121212 has 6 divisors (see below), whose sum is σ = 353869617712128. Its totient is φ = 101105605060604.

The previous prime is 202211210121211. The next prime is 202211210121229. The reversal of 202211210121212 is 212121012112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202211210121211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25276401265148 + ... + 25276401265155.

It is an arithmetic number, because the mean of its divisors is an integer number (58978269618688).

Almost surely, 2^{202211210121212} is an apocalyptic number.

It is an amenable number.

202211210121212 is a deficient number, since it is larger than the sum of its proper divisors (151658407590916).

202211210121212 is a wasteful number, since it uses less digits than its factorization.

202211210121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50552802530307 (or 50552802530305 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 202211210121212 its reverse (212121012112202), we get a palindrome (414332222233414).

The spelling of 202211210121212 in words is "two hundred two trillion, two hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, two hundred twelve".