22112212221010 has 8 divisors (see below), whose sum is σ = 39801981997836. Its totient is φ = 8844884888400.

The previous prime is 22112212221007. The next prime is 22112212221019. The reversal of 22112212221010 is 1012221221122.

It can be written as a sum of positive squares in 2 ways, for example, as 21640555067481 + 471657153529 = 4651941^2 + 686773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22112212221019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1105610611041 + ... + 1105610611060.

Almost surely, 2^{22112212221010} is an apocalyptic number.

22112212221010 is a deficient number, since it is larger than the sum of its proper divisors (17689769776826).

22112212221010 is a wasteful number, since it uses less digits than its factorization.

22112212221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211221222108.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22112212221010 its reverse (1012221221122), we get a palindrome (23124433442132).

The spelling of 22112212221010 in words is "twenty-two trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, ten".