22021200012222 has 24 divisors (see below), whose sum is σ = 47714232757464. Its totient is φ = 7340148814704.

The previous prime is 22021200012179. The next prime is 22021200012271. The reversal of 22021200012222 is 22221000212022.

22021200012222 is a `hidden beast` number, since 220 + 21 + 200 + 0 + 1 + 2 + 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 = 22021200012195 and 22021200012204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20391453 + ... + 21444200.

It is an arithmetic number, because the mean of its divisors is an integer number (1988093031561).

Almost surely, 2^{22021200012222} is an apocalyptic number.

22021200012222 is an abundant number, since it is smaller than the sum of its proper divisors (25693032745242).

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

22021200012222 is a wasteful number, since it uses less digits than its factorization.

22021200012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41864904 (or 41864901 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22021200012222 its reverse (22221000212022), we get a palindrome (44242200224244).

The spelling of 22021200012222 in words is "twenty-two trillion, twenty-one billion, two hundred million, twelve thousand, two hundred twenty-two".