22120002122210 has 32 divisors (see below), whose sum is σ = 40826855632752. Its totient is φ = 8625934356480.

The previous prime is 22120002122167. The next prime is 22120002122227. The reversal of 22120002122210 is 1222120002122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 861456853609 + 21258545268601 = 928147^2 + 4610699^2 .

It is a super-4 number, since 4×22120002122210⁴ (a number of 54 digits) contains 4444 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160383719 + ... + 160521578.

Almost surely, 2^{22120002122210} is an apocalyptic number.

22120002122210 is a deficient number, since it is larger than the sum of its proper divisors (18706853510542).

22120002122210 is a wasteful number, since it uses less digits than its factorization.

22120002122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320905478.

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

Adding to 22120002122210 its reverse (1222120002122), we get a palindrome (23342122124332).

The spelling of 22120002122210 in words is "twenty-two trillion, one hundred twenty billion, two million, one hundred twenty-two thousand, two hundred ten".