20210220120 has 64 divisors (see below), whose sum is σ = 60675505920. Its totient is φ = 5385405824.

The previous prime is 20210220119. The next prime is 20210220131. The reversal of 20210220120 is 2102201202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20210220096 and 20210220105.

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 15 ways as a sum of consecutive naturals, for example, 102439 + ... + 225641.

It is an arithmetic number, because the mean of its divisors is an integer number (948054780).

Almost surely, 2^20210220120 is an apocalyptic number.

20210220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20210220120 is an abundant number, since it is smaller than the sum of its proper divisors (40465285800).

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

20210220120 is a wasteful number, since it uses less digits than its factorization.

20210220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124584 (or 124580 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20210220120 its reverse (2102201202), we get a palindrome (22312421322).

It can be divided in two parts, 202102 and 20120, that added together give a palindrome (222222).

The spelling of 20210220120 in words is "twenty billion, two hundred ten million, two hundred twenty thousand, one hundred twenty".