20210922321 has 8 divisors (see below), whose sum is σ = 27456347520. Its totient is φ = 13219722672.

The previous prime is 20210922317. The next prime is 20210922343. The reversal of 20210922321 is 12322901202.

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

It is not a de Polignac number, because 20210922321 - 2² = 20210922317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20210922291 and 20210922300.

It is not an unprimeable number, because it can be changed into a prime (20210922371) 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, 63556201 + ... + 63556518.

It is an arithmetic number, because the mean of its divisors is an integer number (3432043440).

Almost surely, 2^20210922321 is an apocalyptic number.

It is an amenable number.

20210922321 is a deficient number, since it is larger than the sum of its proper divisors (7245425199).

20210922321 is a wasteful number, since it uses less digits than its factorization.

20210922321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127112775.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 20210922321 in words is "twenty billion, two hundred ten million, nine hundred twenty-two thousand, three hundred twenty-one".