21100223210294 has 4 divisors (see below), whose sum is σ = 31650334815444. Its totient is φ = 10550111605146.

The previous prime is 21100223210267. The next prime is 21100223210323. The reversal of 21100223210294 is 49201232200112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5275055802572 + ... + 5275055802575.

It is an arithmetic number, because the mean of its divisors is an integer number (7912583703861).

Almost surely, 2^{21100223210294} is an apocalyptic number.

21100223210294 is a deficient number, since it is larger than the sum of its proper divisors (10550111605150).

21100223210294 is a wasteful number, since it uses less digits than its factorization.

21100223210294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10550111605149.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 21100223210294 in words is "twenty-one trillion, one hundred billion, two hundred twenty-three million, two hundred ten thousand, two hundred ninety-four".