210221099974 has 8 divisors (see below), whose sum is σ = 315878153688. Its totient is φ = 104928382080.

The previous prime is 210221099887. The next prime is 210221099981. The reversal of 210221099974 is 479990122012.

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

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, 91082512 + ... + 91084819.

It is an arithmetic number, because the mean of its divisors is an integer number (39484769211).

Almost surely, 2^210221099974 is an apocalyptic number.

210221099974 is a deficient number, since it is larger than the sum of its proper divisors (105657053714).

210221099974 is a wasteful number, since it uses less digits than its factorization.

210221099974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182167910.

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 210221099974 in words is "two hundred ten billion, two hundred twenty-one million, ninety-nine thousand, nine hundred seventy-four".