22100101122222 has 64 divisors (see below), whose sum is σ = 52011258140160. Its totient is φ = 6931895697792.

The previous prime is 22100101122179. The next prime is 22100101122289. The reversal of 22100101122222 is 22222110100122.

It is a happy number.

22100101122222 is a `hidden beast` number, since 221 + 0 + 0 + 101 + 122 + 222 = 666.

It is a super-2 number, since 2×22100101122222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22100101122195 and 22100101122204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1787103 + ... + 6884325.

It is an arithmetic number, because the mean of its divisors is an integer number (812675908440).

Almost surely, 2^{22100101122222} is an apocalyptic number.

22100101122222 is an abundant number, since it is smaller than the sum of its proper divisors (29911157017938).

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

22100101122222 is a wasteful number, since it uses less digits than its factorization.

22100101122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101974 (or 5101968 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22100101122222 its reverse (22222110100122), we get a palindrome (44322211222344).

The spelling of 22100101122222 in words is "twenty-two trillion, one hundred billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-two".