22001022320 has 40 divisors (see below), whose sum is σ = 51169117824. Its totient is φ = 8797528832.

The previous prime is 22001022319. The next prime is 22001022331. The reversal of 22001022320 is 2322010022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 22001022295 and 22001022304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209942 + ... + 296778.

Almost surely, 2^22001022320 is an apocalyptic number.

22001022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22001022320 is an abundant number, since it is smaller than the sum of its proper divisors (29168095504).

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

22001022320 is a wasteful number, since it uses less digits than its factorization.

22001022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90017 (or 90011 counting only the distinct ones).

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

Adding to 22001022320 its reverse (2322010022), we get a palindrome (24323032342).

The spelling of 22001022320 in words is "twenty-two billion, one million, twenty-two thousand, three hundred twenty".