202201212121012 has 12 divisors (see below), whose sum is σ = 381071515151236. Its totient is φ = 93323636363520.

The previous prime is 202201212120977. The next prime is 202201212121021. The reversal of 202201212121012 is 210121212102202.

202201212121012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28084636656036 + 174116575464976 = 5299494^2 + 13195324^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944242424189 + ... + 1944242424292.

Almost surely, 2^{202201212121012} is an apocalyptic number.

It is an amenable number.

202201212121012 is a deficient number, since it is larger than the sum of its proper divisors (178870303030224).

202201212121012 is a wasteful number, since it uses less digits than its factorization.

202201212121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3888484848498 (or 3888484848496 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202201212121012 its reverse (210121212102202), we get a palindrome (412322424223214).

The spelling of 202201212121012 in words is "two hundred two trillion, two hundred one billion, two hundred twelve million, one hundred twenty-one thousand, twelve".