21010011198 has 16 divisors (see below), whose sum is σ = 45840024576. Its totient is φ = 6366670040.

The previous prime is 21010011179. The next prime is 21010011199. The reversal of 21010011198 is 89111001012.

It is a super-3 number, since 3×21010011198³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010011199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159166686 + ... + 159166817.

It is an arithmetic number, because the mean of its divisors is an integer number (2865001536).

Almost surely, 2^21010011198 is an apocalyptic number.

21010011198 is an abundant number, since it is smaller than the sum of its proper divisors (24830013378).

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

21010011198 is a wasteful number, since it uses less digits than its factorization.

21010011198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318333519.

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 21010011198 in words is "twenty-one billion, ten million, eleven thousand, one hundred ninety-eight".