20322200021 has 8 divisors (see below), whose sum is σ = 20673653760. Its totient is φ = 19973737728.

The previous prime is 20322199991. The next prime is 20322200047. The reversal of 20322200021 is 12000222302.

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 20322200021 - 2⁶ = 20322199957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20322199969 and 20322200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322200221) 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, 734156 + ... + 761333.

It is an arithmetic number, because the mean of its divisors is an integer number (2584206720).

Almost surely, 2^20322200021 is an apocalyptic number.

It is an amenable number.

20322200021 is a deficient number, since it is larger than the sum of its proper divisors (351453739).

20322200021 is a wasteful number, since it uses less digits than its factorization.

20322200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495723.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20322200021 its reverse (12000222302), we get a palindrome (32322422323).

The spelling of 20322200021 in words is "twenty billion, three hundred twenty-two million, two hundred thousand, twenty-one".