2221274191 has 8 divisors (see below), whose sum is σ = 2305727424. Its totient is φ = 2138370720.

The previous prime is 2221274189. The next prime is 2221274201. The reversal of 2221274191 is 1914721222.

2221274191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221274191 - 2¹ = 2221274189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221274141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384520 + ... + 390253.

It is an arithmetic number, because the mean of its divisors is an integer number (288215928).

Almost surely, 2^2221274191 is an apocalyptic number.

2221274191 is a deficient number, since it is larger than the sum of its proper divisors (84453233).

2221274191 is an equidigital number, since it uses as much as digits as its factorization.

2221274191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774881.

The product of its digits is 4032, while the sum is 31.

The square root of 2221274191 is about 47130.3956168416. The cubic root of 2221274191 is about 1304.7702831566.

The spelling of 2221274191 in words is "two billion, two hundred twenty-one million, two hundred seventy-four thousand, one hundred ninety-one".