22201321020320 has 96 divisors (see below), whose sum is σ = 57551044419792. Its totient is φ = 8042742669312.

The previous prime is 22201321020317. The next prime is 22201321020337. The reversal of 22201321020320 is 2302012310222.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7101350906896 + 15099970113424 = 2664836^2 + 3885868^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22201321020292 and 22201321020301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100585157 + ... + 100805636.

Almost surely, 2^{22201321020320} is an apocalyptic number.

22201321020320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201321020320 is an abundant number, since it is smaller than the sum of its proper divisors (35349723399472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22201321020320 is a wasteful number, since it uses less digits than its factorization.

22201321020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201390874 (or 201390866 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22201321020320 its reverse (2302012310222), we get a palindrome (24503333330542).

The spelling of 22201321020320 in words is "twenty-two trillion, two hundred one billion, three hundred twenty-one million, twenty thousand, three hundred twenty".