22013322221 has 4 divisors (see below), whose sum is σ = 24014533344. Its totient is φ = 20012111100.

The previous prime is 22013322217. The next prime is 22013322257. The reversal of 22013322221 is 12222331022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22013322221 - 2² = 22013322217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013322193 and 22013322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013322421) 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, 1000605545 + ... + 1000605566.

It is an arithmetic number, because the mean of its divisors is an integer number (6003633336).

Almost surely, 2^22013322221 is an apocalyptic number.

It is an amenable number.

22013322221 is a deficient number, since it is larger than the sum of its proper divisors (2001211123).

22013322221 is a wasteful number, since it uses less digits than its factorization.

22013322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001211122.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22013322221 its reverse (12222331022), we get a palindrome (34235653243).

The spelling of 22013322221 in words is "twenty-two billion, thirteen million, three hundred twenty-two thousand, two hundred twenty-one".