202120221012 has 24 divisors (see below), whose sum is σ = 484360170336. Its totient is φ = 65552503968.

The previous prime is 202120220993. The next prime is 202120221053. The reversal of 202120221012 is 210122021202.

It is a junction number, because it is equal to n+sod(n) for n = 202120220982 and 202120221000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227612418 + ... + 227613305.

It is an arithmetic number, because the mean of its divisors is an integer number (20181673764).

Almost surely, 2^202120221012 is an apocalyptic number.

It is an amenable number.

202120221012 is an abundant number, since it is smaller than the sum of its proper divisors (282239949324).

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

202120221012 is a wasteful number, since it uses less digits than its factorization.

202120221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455225767 (or 455225765 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202120221012 its reverse (210122021202), we get a palindrome (412242242214).

It can be divided in two parts, 2021202 and 21012, that multiplied together give a palindrome (42469496424).

The spelling of 202120221012 in words is "two hundred two billion, one hundred twenty million, two hundred twenty-one thousand, twelve".