2221011291 has 16 divisors (see below), whose sum is σ = 3138904224. Its totient is φ = 1392082944.

The previous prime is 2221011283. The next prime is 2221011301. The reversal of 2221011291 is 1921101222.

It is not a de Polignac number, because 2221011291 - 2³ = 2221011283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221011241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25755 + ... + 71451.

It is an arithmetic number, because the mean of its divisors is an integer number (196181514).

Almost surely, 2^2221011291 is an apocalyptic number.

2221011291 is a deficient number, since it is larger than the sum of its proper divisors (917892933).

2221011291 is a wasteful number, since it uses less digits than its factorization.

2221011291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46670.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 2221011291 is about 47127.6064637278. The cubic root of 2221011291 is about 1304.7188055493.

The spelling of 2221011291 in words is "two billion, two hundred twenty-one million, eleven thousand, two hundred ninety-one".