22120100010002 has 4 divisors (see below), whose sum is σ = 33180150015006. Its totient is φ = 11060050005000.

The previous prime is 22120100009989. The next prime is 22120100010013. The reversal of 22120100010002 is 20001000102122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18210625946881 + 3909474063121 = 4267391^2 + 1977239^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530025002499 + ... + 5530025002502.

Almost surely, 2^{22120100010002} is an apocalyptic number.

22120100010002 is a deficient number, since it is larger than the sum of its proper divisors (11060050005004).

22120100010002 is a wasteful number, since it uses less digits than its factorization.

22120100010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060050005003.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22120100010002 its reverse (20001000102122), we get a palindrome (42121100112124).

The spelling of 22120100010002 in words is "twenty-two trillion, one hundred twenty billion, one hundred million, ten thousand, two".