22101220101222 has 24 divisors (see below), whose sum is σ = 49180192478976. Its totient is φ = 7167963275856.

The previous prime is 22101220101221. The next prime is 22101220101263. The reversal of 22101220101222 is 22210102210122.

It is a happy number.

22101220101222 is a `hidden beast` number, since 2 + 210 + 1 + 220 + 10 + 1 + 222 = 666.

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 = 22101220101195 and 22101220101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101220101221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16592506918 + ... + 16592508249.

It is an arithmetic number, because the mean of its divisors is an integer number (2049174686624).

Almost surely, 2^{22101220101222} is an apocalyptic number.

22101220101222 is an abundant number, since it is smaller than the sum of its proper divisors (27078972377754).

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

22101220101222 is a wasteful number, since it uses less digits than its factorization.

22101220101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33185015212 (or 33185015209 counting only the distinct ones).

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

Adding to 22101220101222 its reverse (22210102210122), we get a palindrome (44311322311344).

The spelling of 22101220101222 in words is "twenty-two trillion, one hundred one billion, two hundred twenty million, one hundred one thousand, two hundred twenty-two".