20202121021002 has 16 divisors (see below), whose sum is σ = 40404311371200. Its totient is φ = 6734028785472.

The previous prime is 20202121020937. The next prime is 20202121021031. The reversal of 20202121021002 is 20012012120202.

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, 1386003 + ... + 6505785.

It is an arithmetic number, because the mean of its divisors is an integer number (2525269460700).

Almost surely, 2^{20202121021002} is an apocalyptic number.

20202121021002 is an abundant number, since it is smaller than the sum of its proper divisors (20202190350198).

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

20202121021002 is a wasteful number, since it uses less digits than its factorization.

20202121021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777437.

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

Adding to 20202121021002 its reverse (20012012120202), we get a palindrome (40214133141204).

The spelling of 20202121021002 in words is "twenty trillion, two hundred two billion, one hundred twenty-one million, twenty-one thousand, two".