20221012120 has 64 divisors (see below), whose sum is σ = 49112568000. Its totient is φ = 7469941248.

The previous prime is 20221012111. The next prime is 20221012129. The reversal of 20221012120 is 2121012202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20221012111) and next prime (20221012129).

It is a self number, because there is not a number n which added to its sum of digits gives 20221012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221012129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352275 + ... + 405634.

It is an arithmetic number, because the mean of its divisors is an integer number (767383875).

Almost surely, 2^20221012120 is an apocalyptic number.

20221012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221012120 is an abundant number, since it is smaller than the sum of its proper divisors (28891555880).

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

20221012120 is a wasteful number, since it uses less digits than its factorization.

20221012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757972 (or 757968 counting only the distinct ones).

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

Adding to 20221012120 its reverse (2121012202), we get a palindrome (22342024322).

The spelling of 20221012120 in words is "twenty billion, two hundred twenty-one million, twelve thousand, one hundred twenty".