22212120021010 has 16 divisors (see below), whose sum is σ = 40736189926296. Its totient is φ = 8717209366528.

The previous prime is 22212120020953. The next prime is 22212120021011. The reversal of 22212120021010 is 1012002121222.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19006870737969 + 3205249283041 = 4359687^2 + 1790321^2 .

It is not an unprimeable number, because it can be changed into a prime (22212120021011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20954829679 + ... + 20954830738.

Almost surely, 2^{22212120021010} is an apocalyptic number.

22212120021010 is a deficient number, since it is larger than the sum of its proper divisors (18524069905286).

22212120021010 is a wasteful number, since it uses less digits than its factorization.

22212120021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41909660477.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22212120021010 its reverse (1012002121222), we get a palindrome (23224122142232).

The spelling of 22212120021010 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty million, twenty-one thousand, ten".