21100032230 has 8 divisors (see below), whose sum is σ = 37980058032. Its totient is φ = 8440012888.

The previous prime is 21100032203. The next prime is 21100032259. The reversal of 21100032230 is 3223000112.

It is a happy number.

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

It is a super-2 number, since 2×21100032230² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055001602 + ... + 1055001621.

It is an arithmetic number, because the mean of its divisors is an integer number (4747507254).

Almost surely, 2^21100032230 is an apocalyptic number.

21100032230 is a deficient number, since it is larger than the sum of its proper divisors (16880025802).

21100032230 is a wasteful number, since it uses less digits than its factorization.

21100032230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110003230.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 21100032230 its reverse (3223000112), we get a palindrome (24323032342).

The spelling of 21100032230 in words is "twenty-one billion, one hundred million, thirty-two thousand, two hundred thirty".