2221917272 has 32 divisors (see below), whose sum is σ = 4415763600. Its totient is φ = 1044516864.

The previous prime is 2221917263. The next prime is 2221917283. The reversal of 2221917272 is 2727191222.

It is a super-2 number, since 2×2221917272² = 9873832727223843968, which contains 22 as substring.

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, 130568 + ... + 146600.

Almost surely, 2^2221917272 is an apocalyptic number.

It is an amenable number.

2221917272 is a deficient number, since it is larger than the sum of its proper divisors (2193846328).

2221917272 is a wasteful number, since it uses less digits than its factorization.

2221917272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17075 (or 17071 counting only the distinct ones).

The product of its digits is 14112, while the sum is 35.

The square root of 2221917272 is about 47137.2174825795. The cubic root of 2221917272 is about 1304.8961856711.

The spelling of 2221917272 in words is "two billion, two hundred twenty-one million, nine hundred seventeen thousand, two hundred seventy-two".