202121200012222 has 32 divisors (see below), whose sum is σ = 303686143778304. Its totient is φ = 100892645964000.

The previous prime is 202121200012219. The next prime is 202121200012297. The reversal of 202121200012222 is 222210002121202.

It is a super-2 number, since 2×202121200012222² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202121200012222.

It is a congruent number.

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, 38418777072 + ... + 38418782332.

It is an arithmetic number, because the mean of its divisors is an integer number (9490191993072).

Almost surely, 2^{202121200012222} is an apocalyptic number.

202121200012222 is a deficient number, since it is larger than the sum of its proper divisors (101564943766082).

202121200012222 is a wasteful number, since it uses less digits than its factorization.

202121200012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15144.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202121200012222 its reverse (222210002121202), we get a palindrome (424331202133424).

The spelling of 202121200012222 in words is "two hundred two trillion, one hundred twenty-one billion, two hundred million, twelve thousand, two hundred twenty-two".