20221201020120 has 128 divisors (see below), whose sum is σ = 63126493689600. Its totient is φ = 5177647609344.

The previous prime is 20221201020109. The next prime is 20221201020143. The reversal of 20221201020120 is 2102010212202.

It is a super-2 number, since 2×20221201020120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20221201020120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32906047 + ... + 33514926.

It is an arithmetic number, because the mean of its divisors is an integer number (493175731950).

Almost surely, 2^{20221201020120} is an apocalyptic number.

20221201020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221201020120 is an abundant number, since it is smaller than the sum of its proper divisors (42905292669480).

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

20221201020120 is a wasteful number, since it uses less digits than its factorization.

20221201020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66421089 (or 66421085 counting only the distinct ones).

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

Adding to 20221201020120 its reverse (2102010212202), we get a palindrome (22323211232322).

The spelling of 20221201020120 in words is "twenty trillion, two hundred twenty-one billion, two hundred one million, twenty thousand, one hundred twenty".