221372429304 has 64 divisors (see below), whose sum is σ = 610539380640. Its totient is φ = 66453258240.

The previous prime is 221372429297. The next prime is 221372429339. The reversal of 221372429304 is 403924273122.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8639977 + ... + 8665560.

Almost surely, 2^221372429304 is an apocalyptic number.

221372429304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221372429304 is an abundant number, since it is smaller than the sum of its proper divisors (389166951336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221372429304 is a wasteful number, since it uses less digits than its factorization.

221372429304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17305600 (or 17305596 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 221372429304 in words is "two hundred twenty-one billion, three hundred seventy-two million, four hundred twenty-nine thousand, three hundred four".