23220312201021 has 16 divisors (see below), whose sum is σ = 34243121529344. Its totient is φ = 13903222273344.

The previous prime is 23220312200959. The next prime is 23220312201071. The reversal of 23220312201021 is 12010221302232.

It is not a de Polignac number, because 23220312201021 - 2¹³ = 23220312192829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220312201071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8045844781 + ... + 8045847666.

It is an arithmetic number, because the mean of its divisors is an integer number (2140195095584).

Almost surely, 2^{23220312201021} is an apocalyptic number.

It is an amenable number.

23220312201021 is a deficient number, since it is larger than the sum of its proper divisors (11022809328323).

23220312201021 is a wasteful number, since it uses less digits than its factorization.

23220312201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16091692500.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23220312201021 its reverse (12010221302232), we get a palindrome (35230533503253).

The spelling of 23220312201021 in words is "twenty-three trillion, two hundred twenty billion, three hundred twelve million, two hundred one thousand, twenty-one".