21112098 has 16 divisors (see below), whose sum is σ = 48256320. Its totient is φ = 6032016.

The previous prime is 21112093. The next prime is 21112103. The reversal of 21112098 is 89021112.

It is an interprime number because it is at equal distance from previous prime (21112093) and next prime (21112103).

It is not an unprimeable number, because it can be changed into a prime (21112093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251293 + ... + 251376.

It is an arithmetic number, because the mean of its divisors is an integer number (3016020).

Almost surely, 2^21112098 is an apocalyptic number.

21112098 is an abundant number, since it is smaller than the sum of its proper divisors (27144222).

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

21112098 is a wasteful number, since it uses less digits than its factorization.

21112098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502681.

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

The square root of 21112098 is about 4594.7903107759. The cubic root of 21112098 is about 276.3824513115.

The spelling of 21112098 in words is "twenty-one million, one hundred twelve thousand, ninety-eight".