22100211212222 has 32 divisors (see below), whose sum is σ = 38948436061920. Its totient is φ = 9272194629120.

The previous prime is 22100211212207. The next prime is 22100211212231. The reversal of 22100211212222 is 22221211200122.

It is a junction number, because it is equal to n+sod(n) for n = 22100211212194 and 22100211212203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1700018 + ... + 6862250.

It is an arithmetic number, because the mean of its divisors is an integer number (1217138626935).

Almost surely, 2^{22100211212222} is an apocalyptic number.

22100211212222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22100211212222 is a deficient number, since it is larger than the sum of its proper divisors (16848224849698).

22100211212222 is a wasteful number, since it uses less digits than its factorization.

22100211212222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177228.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22100211212222 its reverse (22221211200122), we get a palindrome (44321422412344).

It can be divided in two parts, 2210021 and 1212222, that added together give a palindrome (3422243).

The spelling of 22100211212222 in words is "twenty-two trillion, one hundred billion, two hundred eleven million, two hundred twelve thousand, two hundred twenty-two".