20221001020120 has 32 divisors (see below), whose sum is σ = 45504010253520. Its totient is φ = 8087198993280.

The previous prime is 20221001020109. The next prime is 20221001020127. The reversal of 20221001020120 is 2102010012202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20221001020120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221001020127) 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, 37271526 + ... + 37810165.

Almost surely, 2^{20221001020120} is an apocalyptic number.

20221001020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221001020120 is an abundant number, since it is smaller than the sum of its proper divisors (25283009233400).

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

20221001020120 is a wasteful number, since it uses less digits than its factorization.

20221001020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75088435 (or 75088431 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20221001020120 its reverse (2102010012202), we get a palindrome (22323011032322).

The spelling of 20221001020120 in words is "twenty trillion, two hundred twenty-one billion, one million, twenty thousand, one hundred twenty".