20233223213021 has 16 divisors (see below), whose sum is σ = 24906029522304. Its totient is φ = 16006389182784.

The previous prime is 20233223212997. The next prime is 20233223213129. The reversal of 20233223213021 is 12031232233202.

It is not a de Polignac number, because 20233223213021 - 2³⁸ = 19958345306077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233223215021) 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, 15442775 + ... + 16701668.

It is an arithmetic number, because the mean of its divisors is an integer number (1556626845144).

Almost surely, 2^{20233223213021} is an apocalyptic number.

It is an amenable number.

20233223213021 is a deficient number, since it is larger than the sum of its proper divisors (4672806309283).

20233223213021 is a wasteful number, since it uses less digits than its factorization.

20233223213021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32151380.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20233223213021 its reverse (12031232233202), we get a palindrome (32264455446223).

The spelling of 20233223213021 in words is "twenty trillion, two hundred thirty-three billion, two hundred twenty-three million, two hundred thirteen thousand, twenty-one".