22122012100202 has 24 divisors (see below), whose sum is σ = 38796596205444. Its totient is φ = 9432736115712.

The previous prime is 22122012100109. The next prime is 22122012100211. The reversal of 22122012100202 is 20200121022122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21774924982321 + 347087117881 = 4666361^2 + 589141^2 .

It is a super-2 number, since 2×22122012100202² (a number of 27 digits) contains 22 as substring.

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, 572911703 + ... + 572950314.

Almost surely, 2^{22122012100202} is an apocalyptic number.

22122012100202 is a deficient number, since it is larger than the sum of its proper divisors (16674584105242).

22122012100202 is a wasteful number, since it uses less digits than its factorization.

22122012100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145862230 (or 1145862223 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22122012100202 its reverse (20200121022122), we get a palindrome (42322133122324).

The spelling of 22122012100202 in words is "twenty-two trillion, one hundred twenty-two billion, twelve million, one hundred thousand, two hundred two".