22011113100 has 72 divisors (see below), whose sum is σ = 65881564560. Its totient is φ = 5667226880.

The previous prime is 22011113057. The next prime is 22011113101. The reversal of 22011113100 is 131111022.

It is a super-2 number, since 2×22011113100² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (22011113101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1256307 + ... + 1273706.

It is an arithmetic number, because the mean of its divisors is an integer number (915021730).

Almost surely, 2^22011113100 is an apocalyptic number.

22011113100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011113100 is an abundant number, since it is smaller than the sum of its proper divisors (43870451460).

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

22011113100 is a wasteful number, since it uses less digits than its factorization.

22011113100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530059 (or 2530052 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 22011113100 its reverse (131111022), we get a palindrome (22142224122).

The spelling of 22011113100 in words is "twenty-two billion, eleven million, one hundred thirteen thousand, one hundred".