22112212100202 has 216 divisors, whose sum is σ = 57892164990660. Its totient is φ = 6315616500480.

The previous prime is 22112212100197. The next prime is 22112212100291. The reversal of 22112212100202 is 20200121221122.

It is a happy number.

22112212100202 is a `hidden beast` number, since 2 + 211 + 221 + 210 + 0 + 20 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21844228835961 + 267983264241 = 4673781^2 + 517671^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 3549878424 + ... + 3549884652.

Almost surely, 2^{22112212100202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22112212100202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28946082495330).

22112212100202 is an abundant number, since it is smaller than the sum of its proper divisors (35779952890458).

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

22112212100202 is an frugal number, since it uses more digits than its factorization.

22112212100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11790 (or 11762 counting only the distinct ones).

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

Adding to 22112212100202 its reverse (20200121221122), we get a palindrome (42312333321324).

The spelling of 22112212100202 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, one hundred thousand, two hundred two".