21332111198 has 8 divisors (see below), whose sum is σ = 31999059720. Its totient is φ = 10665757960.

The previous prime is 21332111191. The next prime is 21332111209. The reversal of 21332111198 is 89111123312.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332111191) 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, 44648 + ... + 211323.

It is an arithmetic number, because the mean of its divisors is an integer number (3999882465).

Almost surely, 2^21332111198 is an apocalyptic number.

21332111198 is a deficient number, since it is larger than the sum of its proper divisors (10666948522).

21332111198 is a wasteful number, since it uses less digits than its factorization.

21332111198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297642.

The product of its digits is 2592, while the sum is 32.

The spelling of 21332111198 in words is "twenty-one billion, three hundred thirty-two million, one hundred eleven thousand, one hundred ninety-eight".