20220121220112 has 120 divisors (see below), whose sum is σ = 61733859771168. Its totient is φ = 6127188672000.

The previous prime is 20220121220081. The next prime is 20220121220149. The reversal of 20220121220112 is 21102212102202.

It is a happy number.

20220121220112 is a `hidden beast` number, since 20 + 220 + 1 + 212 + 201 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 111503788 + ... + 111684980.

Almost surely, 2^{20220121220112} is an apocalyptic number.

20220121220112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20220121220112 is an abundant number, since it is smaller than the sum of its proper divisors (41513738551056).

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

20220121220112 is a wasteful number, since it uses less digits than its factorization.

20220121220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251669 (or 251660 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20220121220112 its reverse (21102212102202), we get a palindrome (41322333322314).

The spelling of 20220121220112 in words is "twenty trillion, two hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twelve".