22101100212 has 24 divisors (see below), whose sum is σ = 51571895200. Its totient is φ = 7366653216.

The previous prime is 22101100211. The next prime is 22101100213. The reversal of 22101100212 is 21200110122.

It is an interprime number because it is at equal distance from previous prime (22101100211) and next prime (22101100213).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101100211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291339 + ... + 359277.

Almost surely, 2^22101100212 is an apocalyptic number.

It is an amenable number.

22101100212 is an abundant number, since it is smaller than the sum of its proper divisors (29470794988).

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

22101100212 is a wasteful number, since it uses less digits than its factorization.

22101100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95055 (or 95053 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22101100212 its reverse (21200110122), we get a palindrome (43301210334).

The spelling of 22101100212 in words is "twenty-two billion, one hundred one million, one hundred thousand, two hundred twelve".