20220112001220 has 24 divisors (see below), whose sum is σ = 56616313603584. Its totient is φ = 5392029866976.

The previous prime is 20220112001213. The next prime is 20220112001231. The reversal of 20220112001220 is 2210021102202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20220112001220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168500933284 + ... + 168500933403.

It is an arithmetic number, because the mean of its divisors is an integer number (2359013066816).

Almost surely, 2^{20220112001220} is an apocalyptic number.

20220112001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220112001220 is an abundant number, since it is smaller than the sum of its proper divisors (36396201602364).

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

20220112001220 is a wasteful number, since it uses less digits than its factorization.

20220112001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337001866699 (or 337001866697 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20220112001220 its reverse (2210021102202), we get a palindrome (22430133103422).

The spelling of 20220112001220 in words is "twenty trillion, two hundred twenty billion, one hundred twelve million, one thousand, two hundred twenty".