112121122020 has 24 divisors (see below), whose sum is σ = 313939141824. Its totient is φ = 29898965856.

The previous prime is 112121122007. The next prime is 112121122021. The reversal of 112121122020 is 20221121211.

It is a super-2 number, since 2×112121122020² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (112121122021) 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, 934342624 + ... + 934342743.

It is an arithmetic number, because the mean of its divisors is an integer number (13080797576).

Almost surely, 2^112121122020 is an apocalyptic number.

112121122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121122020 is an abundant number, since it is smaller than the sum of its proper divisors (201818019804).

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

112121122020 is a wasteful number, since it uses less digits than its factorization.

112121122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868685379 (or 1868685377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112121122020 its reverse (20221121211), we get a palindrome (132342243231).

The spelling of 112121122020 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred twenty-two thousand, twenty".