20022000120 has 128 divisors (see below), whose sum is σ = 70252704000. Its totient is φ = 5058184320.

The previous prime is 20022000083. The next prime is 20022000127. The reversal of 20022000120 is 2100022002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022000127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 467346 + ... + 508385.

It is an arithmetic number, because the mean of its divisors is an integer number (548849250).

Almost surely, 2^20022000120 is an apocalyptic number.

20022000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022000120 is an abundant number, since it is smaller than the sum of its proper divisors (50230703880).

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

20022000120 is a wasteful number, since it uses less digits than its factorization.

20022000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975770 (or 975760 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20022000120 its reverse (2100022002), we get a palindrome (22122022122).

The spelling of 20022000120 in words is "twenty billion, twenty-two million, one hundred twenty", and thus it is an aban number.