20122023221 has 8 divisors (see below), whose sum is σ = 20254399200. Its totient is φ = 19989700848.

The previous prime is 20122023217. The next prime is 20122023307. The reversal of 20122023221 is 12232022102.

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 20122023221 - 2² = 20122023217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122023211) 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, 978770 + ... + 999116.

It is an arithmetic number, because the mean of its divisors is an integer number (2531799900).

Almost surely, 2^20122023221 is an apocalyptic number.

It is an amenable number.

20122023221 is a deficient number, since it is larger than the sum of its proper divisors (132375979).

20122023221 is a wasteful number, since it uses less digits than its factorization.

20122023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26803.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20122023221 its reverse (12232022102), we get a palindrome (32354045323).

The spelling of 20122023221 in words is "twenty billion, one hundred twenty-two million, twenty-three thousand, two hundred twenty-one".