22321020401 has 8 divisors (see below), whose sum is σ = 22434644904. Its totient is φ = 22207651200.

The previous prime is 22321020367. The next prime is 22321020413. The reversal of 22321020401 is 10402012322.

It can be written as a sum of positive squares in 4 ways, for example, as 11508140176 + 10812880225 = 107276^2 + 103985^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22321020401 is a prime.

It is a super-3 number, since 3×22321020401³ (a number of 32 digits) contains 333 as substring.

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 22321020401.

It is not an unprimeable number, because it can be changed into a prime (22321010401) 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, 112715 + ... + 239471.

It is an arithmetic number, because the mean of its divisors is an integer number (2804330613).

Almost surely, 2^22321020401 is an apocalyptic number.

It is an amenable number.

22321020401 is a deficient number, since it is larger than the sum of its proper divisors (113624503).

22321020401 is a wasteful number, since it uses less digits than its factorization.

22321020401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127651.

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

Adding to 22321020401 its reverse (10402012322), we get a palindrome (32723032723).

The spelling of 22321020401 in words is "twenty-two billion, three hundred twenty-one million, twenty thousand, four hundred one".