2272221369 has 72 divisors (see below), whose sum is σ = 3836720160. Its totient is φ = 1328009760.

The previous prime is 2272221361. The next prime is 2272221373. The reversal of 2272221369 is 9631222722.

2272221369 is a `hidden beast` number, since 2 + 2 + 72 + 221 + 369 = 666.

It is not a de Polignac number, because 2272221369 - 2³ = 2272221361 is a prime.

It is a super-2 number, since 2×2272221369² = 10325979899480468322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2272221361) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2747134 + ... + 2747960.

It is an arithmetic number, because the mean of its divisors is an integer number (53287780).

Almost surely, 2^2272221369 is an apocalyptic number.

2272221369 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2272221369 is a deficient number, since it is larger than the sum of its proper divisors (1564498791).

2272221369 is a wasteful number, since it uses less digits than its factorization.

2272221369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 870 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 2272221369 is about 47667.8232039182. The cubic root of 2272221369 is about 1314.6703851779.

The spelling of 2272221369 in words is "two billion, two hundred seventy-two million, two hundred twenty-one thousand, three hundred sixty-nine".