22221420213 has 16 divisors (see below), whose sum is σ = 29833661376. Its totient is φ = 14712057600.

The previous prime is 22221420211. The next prime is 22221420253. The reversal of 22221420213 is 31202412222.

It is not a de Polignac number, because 22221420213 - 2¹ = 22221420211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22221420213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221420211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 232395 + ... + 313767.

It is an arithmetic number, because the mean of its divisors is an integer number (1864603836).

Almost surely, 2^22221420213 is an apocalyptic number.

It is an amenable number.

22221420213 is a deficient number, since it is larger than the sum of its proper divisors (7612241163).

22221420213 is a wasteful number, since it uses less digits than its factorization.

22221420213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82004.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22221420213 its reverse (31202412222), we get a palindrome (53423832435).

The spelling of 22221420213 in words is "twenty-two billion, two hundred twenty-one million, four hundred twenty thousand, two hundred thirteen".