22121303033021 has 8 divisors (see below), whose sum is σ = 22143799751424. Its totient is φ = 22098807617040.

The previous prime is 22121303033009. The next prime is 22121303033029. The reversal of 22121303033021 is 12033030312122.

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 22121303033021 - 2⁶ = 22121303032957 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 (22121303033029) 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, 35681516 + ... + 36296186.

It is an arithmetic number, because the mean of its divisors is an integer number (2767974968928).

Almost surely, 2^{22121303033021} is an apocalyptic number.

It is an amenable number.

22121303033021 is a deficient number, since it is larger than the sum of its proper divisors (22496718403).

22121303033021 is a wasteful number, since it uses less digits than its factorization.

22121303033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651211.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 22121303033021 its reverse (12033030312122), we get a palindrome (34154333345143).

The spelling of 22121303033021 in words is "twenty-two trillion, one hundred twenty-one billion, three hundred three million, thirty-three thousand, twenty-one".