2212884891 has 12 divisors (see below), whose sum is σ = 3653016432. Its totient is φ = 1264505616.

The previous prime is 2212884871. The next prime is 2212884899. The reversal of 2212884891 is 1984882122.

It is not a de Polignac number, because 2212884891 - 2⁹ = 2212884379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212884899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17562516 + ... + 17562641.

It is an arithmetic number, because the mean of its divisors is an integer number (304418036).

Almost surely, 2^2212884891 is an apocalyptic number.

2212884891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2212884891 is a deficient number, since it is larger than the sum of its proper divisors (1440131541).

2212884891 is a wasteful number, since it uses less digits than its factorization.

2212884891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35125170 (or 35125167 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 2212884891 is about 47041.3104728174. The cubic root of 2212884891 is about 1303.1255936992.

The spelling of 2212884891 in words is "two billion, two hundred twelve million, eight hundred eighty-four thousand, eight hundred ninety-one".