202121212212122 has 32 divisors (see below), whose sum is σ = 348252902860800. Its totient is φ = 86183573168880.

The previous prime is 202121212212119. The next prime is 202121212212167. The reversal of 202121212212122 is 221212212121202.

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 15 ways as a sum of consecutive naturals, for example, 51622097 + ... + 55399307.

It is an arithmetic number, because the mean of its divisors is an integer number (10882903214400).

Almost surely, 2^{202121212212122} is an apocalyptic number.

202121212212122 is a deficient number, since it is larger than the sum of its proper divisors (146131690648678).

202121212212122 is a wasteful number, since it uses less digits than its factorization.

202121212212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796626.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 202121212212122 its reverse (221212212121202), we get a palindrome (423333424333324).

The spelling of 202121212212122 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twelve thousand, one hundred twenty-two".