202121112212202 has 64 divisors (see below), whose sum is σ = 408482471916288. Its totient is φ = 66671067840000.

The previous prime is 202121112212191. The next prime is 202121112212287. The reversal of 202121112212202 is 202212211121202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225803827 + ... + 226697177.

It is an arithmetic number, because the mean of its divisors is an integer number (6382538623692).

Almost surely, 2^{202121112212202} is an apocalyptic number.

202121112212202 is an abundant number, since it is smaller than the sum of its proper divisors (206361359704086).

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

202121112212202 is a wasteful number, since it uses less digits than its factorization.

202121112212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894495.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202121112212202 its reverse (202212211121202), we get a palindrome (404333323333404).

The spelling of 202121112212202 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twelve thousand, two hundred two".