202021121211012 has 48 divisors (see below), whose sum is σ = 523771415305600. Its totient is φ = 67338708363360.

The previous prime is 202021121211011. The next prime is 202021121211031. The reversal of 202021121211012 is 210112121120202.

202021121211012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×202021121211012² (a number of 29 digits) contains 22 as substring.

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 (202021121211011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18739087 + ... + 27480822.

Almost surely, 2^{202021121211012} is an apocalyptic number.

It is an amenable number.

202021121211012 is an abundant number, since it is smaller than the sum of its proper divisors (321750294094588).

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

202021121211012 is a wasteful number, since it uses less digits than its factorization.

202021121211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46260393 (or 46260385 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 202021121211012 its reverse (210112121120202), we get a palindrome (412133242331214).

The spelling of 202021121211012 in words is "two hundred two trillion, twenty-one billion, one hundred twenty-one million, two hundred eleven thousand, twelve".