1222122200022 has 32 divisors (see below), whose sum is σ = 2716518808800. Its totient is φ = 407270312064.

The previous prime is 1222122200011. The next prime is 1222122200029. The reversal of 1222122200022 is 2200022212221.

It is a super-2 number, since 2×1222122200022² (a number of 25 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 = 1222122199968 and 1222122200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122200029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667943 + ... + 3092274.

It is an arithmetic number, because the mean of its divisors is an integer number (84891212775).

Almost surely, 2^{1222122200022} is an apocalyptic number.

1222122200022 is an abundant number, since it is smaller than the sum of its proper divisors (1494396608778).

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

1222122200022 is a wasteful number, since it uses less digits than its factorization.

1222122200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5764157 (or 5764151 counting only the distinct ones).

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

Adding to 1222122200022 its reverse (2200022212221), we get a palindrome (3422144412243).

The spelling of 1222122200022 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, twenty-two".