20220100120 has 32 divisors (see below), whose sum is σ = 49631155920. Its totient is φ = 7352763520.

The previous prime is 20220100097. The next prime is 20220100127. The reversal of 20220100120 is 2100102202.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20220100097 and 20220100106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220100127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22976947 + ... + 22977826.

Almost surely, 2^20220100120 is an apocalyptic number.

20220100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220100120 is an abundant number, since it is smaller than the sum of its proper divisors (29411055800).

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

20220100120 is a wasteful number, since it uses less digits than its factorization.

20220100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45954795 (or 45954791 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20220100120 its reverse (2100102202), we get a palindrome (22320202322).

The spelling of 20220100120 in words is "twenty billion, two hundred twenty million, one hundred thousand, one hundred twenty".