202101221220012 has 24 divisors (see below), whose sum is σ = 523966129089200. Its totient is φ = 67367073739968.

The previous prime is 202101221220011. The next prime is 202101221220029. The reversal of 202101221220012 is 210022122101202.

It is a happy number.

202101221220012 is a `hidden beast` number, since 2 + 0 + 210 + 1 + 221 + 220 + 0 + 12 = 666.

202101221220012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202101221220011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935653801837 + ... + 935653802052.

Almost surely, 2^{202101221220012} is an apocalyptic number.

It is an amenable number.

202101221220012 is an abundant number, since it is smaller than the sum of its proper divisors (321864907869188).

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

202101221220012 is a wasteful number, since it uses less digits than its factorization.

202101221220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871307603902 (or 1871307603894 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202101221220012 its reverse (210022122101202), we get a palindrome (412123343321214).

The spelling of 202101221220012 in words is "two hundred two trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty thousand, twelve".