21002110098 has 16 divisors (see below), whose sum is σ = 42052126080. Its totient is φ = 6992719056.

The previous prime is 21002110069. The next prime is 21002110139. The reversal of 21002110098 is 89001120012.

It is a Curzon 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, 1990378 + ... + 2000901.

It is an arithmetic number, because the mean of its divisors is an integer number (2628257880).

Almost surely, 2^21002110098 is an apocalyptic number.

21002110098 is an abundant number, since it is smaller than the sum of its proper divisors (21050015982).

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

21002110098 is a wasteful number, since it uses less digits than its factorization.

21002110098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992161.

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 21002110098 in words is "twenty-one billion, two million, one hundred ten thousand, ninety-eight".