22100020021012 has 12 divisors (see below), whose sum is σ = 38682065621556. Its totient is φ = 11048001272000.

The previous prime is 22100020021003. The next prime is 22100020021021. The reversal of 22100020021012 is 21012002000122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22100020021003) and next prime (22100020021021).

It can be written as a sum of positive squares in 2 ways, for example, as 20659170295696 + 1440849725316 = 4545236^2 + 1200354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22100020020983 and 22100020021001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502159873 + ... + 502203880.

It is an arithmetic number, because the mean of its divisors is an integer number (3223505468463).

Almost surely, 2^{22100020021012} is an apocalyptic number.

It is an amenable number.

22100020021012 is a deficient number, since it is larger than the sum of its proper divisors (16582045600544).

22100020021012 is a wasteful number, since it uses less digits than its factorization.

22100020021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004369258 (or 1004369256 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22100020021012 its reverse (21012002000122), we get a palindrome (43112022021134).

The spelling of 22100020021012 in words is "twenty-two trillion, one hundred billion, twenty million, twenty-one thousand, twelve".