20012220113100 has 144 divisors (see below), whose sum is σ = 59846442582528. Its totient is φ = 5160118933760.

The previous prime is 20012220113087. The next prime is 20012220113101. The reversal of 20012220113100 is 131102221002.

It is a super-2 number, since 2×20012220113100² (a number of 27 digits) contains 22 as substring.

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 20012220113100.

It is not an unprimeable number, because it can be changed into a prime (20012220113101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7379739 + ... + 9720338.

It is an arithmetic number, because the mean of its divisors is an integer number (415600295712).

Almost surely, 2^{20012220113100} is an apocalyptic number.

20012220113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012220113100 is an abundant number, since it is smaller than the sum of its proper divisors (39834222469428).

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

20012220113100 is a wasteful number, since it uses less digits than its factorization.

20012220113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100224 (or 17100217 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20012220113100 its reverse (131102221002), we get a palindrome (20143322334102).

The spelling of 20012220113100 in words is "twenty trillion, twelve billion, two hundred twenty million, one hundred thirteen thousand, one hundred".