22101100211100 has 72 divisors (see below), whose sum is σ = 67707370544688. Its totient is φ = 5546942796800.

The previous prime is 22101100211093. The next prime is 22101100211131. The reversal of 22101100211100 is 111200110122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2166769431 + ... + 2166779630.

It is an arithmetic number, because the mean of its divisors is an integer number (940380146454).

Almost surely, 2^{22101100211100} is an apocalyptic number.

22101100211100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101100211100 is an abundant number, since it is smaller than the sum of its proper divisors (45606270333588).

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

22101100211100 is a wasteful number, since it uses less digits than its factorization.

22101100211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333549095 (or 4333549088 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 22101100211100 its reverse (111200110122), we get a palindrome (22212300321222).

The spelling of 22101100211100 in words is "twenty-two trillion, one hundred one billion, one hundred million, two hundred eleven thousand, one hundred".