2212551 has 12 divisors (see below), whose sum is σ = 3486600. Its totient is φ = 1340880.

The previous prime is 2212547. The next prime is 2212571. The reversal of 2212551 is 1552122.

It is not a de Polignac number, because 2212551 - 2² = 2212547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212571) 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, 11076 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (290550).

2^2212551 is an apocalyptic number.

2212551 is a deficient number, since it is larger than the sum of its proper divisors (1274049).

2212551 is a wasteful number, since it uses less digits than its factorization.

2212551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22366 (or 22363 counting only the distinct ones).

The product of its digits is 200, while the sum is 18.

The square root of 2212551 is about 1487.4646214280. The cubic root of 2212551 is about 130.3060049728.

Adding to 2212551 its reverse (1552122), we get a palindrome (3764673).

It can be divided in two parts, 221 and 2551, that added together give a palindrome (2772).

The spelling of 2212551 in words is "two million, two hundred twelve thousand, five hundred fifty-one".