2212791 has 12 divisors (see below), whose sum is σ = 3432312. Its totient is φ = 1264368.

The previous prime is 2212783. The next prime is 2212817. The reversal of 2212791 is 1972122.

It is not a de Polignac number, because 2212791 - 2³ = 2212783 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

2212791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212781) 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, 7380 + ... + 7673.

It is an arithmetic number, because the mean of its divisors is an integer number (286026).

2^2212791 is an apocalyptic number.

2212791 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2212791 is a deficient number, since it is larger than the sum of its proper divisors (1219521).

2212791 is a wasteful number, since it uses less digits than its factorization.

2212791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15070 (or 15063 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 2212791 is about 1487.5452934281. The cubic root of 2212791 is about 130.3107163234.

It can be divided in two parts, 2212 and 791, that added together give a palindrome (3003).

The spelling of 2212791 in words is "two million, two hundred twelve thousand, seven hundred ninety-one".