22021001098 has 8 divisors (see below), whose sum is σ = 33573001860. Its totient is φ = 10830000480.

The previous prime is 22021001087. The next prime is 22021001099. The reversal of 22021001098 is 89010012022.

It can be written as a sum of positive squares in 2 ways, for example, as 21848682969 + 172318129 = 147813^2 + 13127^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 90249883 + ... + 90250126.

Almost surely, 2^22021001098 is an apocalyptic number.

22021001098 is a deficient number, since it is larger than the sum of its proper divisors (11552000762).

22021001098 is a wasteful number, since it uses less digits than its factorization.

22021001098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180500072.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 22021001098 in words is "twenty-two billion, twenty-one million, one thousand, ninety-eight".