22021001097 has 16 divisors (see below), whose sum is σ = 29637970560. Its totient is φ = 14542416000.

The previous prime is 22021001087. The next prime is 22021001099. The reversal of 22021001097 is 79010012022.

It is not a de Polignac number, because 22021001097 - 2¹⁵ = 22020968329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021001099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2399197 + ... + 2408357.

It is an arithmetic number, because the mean of its divisors is an integer number (1852373160).

Almost surely, 2^22021001097 is an apocalyptic number.

It is an amenable number.

22021001097 is a deficient number, since it is larger than the sum of its proper divisors (7616969463).

22021001097 is a wasteful number, since it uses less digits than its factorization.

22021001097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16624.

The product of its (nonzero) digits is 504, while the sum is 24.

The spelling of 22021001097 in words is "twenty-two billion, twenty-one million, one thousand, ninety-seven".