22223013321221 has 4 divisors (see below), whose sum is σ = 22223185132512. Its totient is φ = 22222841509932.

The previous prime is 22223013321217. The next prime is 22223013321283. The reversal of 22223013321221 is 12212331032222.

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 22223013321221 - 2² = 22223013321217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22223013321521) 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, 85711481 + ... + 85970366.

It is an arithmetic number, because the mean of its divisors is an integer number (5555796283128).

Almost surely, 2^{22223013321221} is an apocalyptic number.

It is an amenable number.

22223013321221 is a deficient number, since it is larger than the sum of its proper divisors (171811291).

22223013321221 is a wasteful number, since it uses less digits than its factorization.

22223013321221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171811290.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22223013321221 its reverse (12212331032222), we get a palindrome (34435344353443).

The spelling of 22223013321221 in words is "twenty-two trillion, two hundred twenty-three billion, thirteen million, three hundred twenty-one thousand, two hundred twenty-one".