221208167914 has 16 divisors (see below), whose sum is σ = 339553649952. Its totient is φ = 108023994288.

The previous prime is 221208167893. The next prime is 221208167927. The reversal of 221208167914 is 419761802122.

It is a super-2 number, since 2×221208167914² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189852 + ... + 1363144.

It is an arithmetic number, because the mean of its divisors is an integer number (21222103122).

Almost surely, 2^221208167914 is an apocalyptic number.

221208167914 is a deficient number, since it is larger than the sum of its proper divisors (118345482038).

221208167914 is a wasteful number, since it uses less digits than its factorization.

221208167914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188181.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 221208167914 in words is "two hundred twenty-one billion, two hundred eight million, one hundred sixty-seven thousand, nine hundred fourteen".