221147919132 has 24 divisors (see below), whose sum is σ = 589727784576. Its totient is φ = 63185119728.

The previous prime is 221147919067. The next prime is 221147919149. The reversal of 221147919132 is 231919741122.

It is a super-2 number, since 2×221147919132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 1316356578 + ... + 1316356745.

It is an arithmetic number, because the mean of its divisors is an integer number (24571991024).

Almost surely, 2^221147919132 is an apocalyptic number.

It is an amenable number.

221147919132 is an abundant number, since it is smaller than the sum of its proper divisors (368579865444).

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

221147919132 is a wasteful number, since it uses less digits than its factorization.

221147919132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632713337 (or 2632713335 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The spelling of 221147919132 in words is "two hundred twenty-one billion, one hundred forty-seven million, nine hundred nineteen thousand, one hundred thirty-two".