23220221311 has 8 divisors (see below), whose sum is σ = 26538551424. Its totient is φ = 19902180120.

The previous prime is 23220221287. The next prime is 23220221329. The reversal of 23220221311 is 11312202232.

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

It is a cyclic number.

It is not a de Polignac number, because 23220221311 - 2⁹ = 23220220799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220221111) 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, 142596 + ... + 258406.

It is an arithmetic number, because the mean of its divisors is an integer number (3317318928).

Almost surely, 2^23220221311 is an apocalyptic number.

23220221311 is a deficient number, since it is larger than the sum of its proper divisors (3318330113).

23220221311 is a wasteful number, since it uses less digits than its factorization.

23220221311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144461.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23220221311 its reverse (11312202232), we get a palindrome (34532423543).

The spelling of 23220221311 in words is "twenty-three billion, two hundred twenty million, two hundred twenty-one thousand, three hundred eleven".