2722231 has 2 divisors, whose sum is σ = 2722232. Its totient is φ = 2722230.

The previous prime is 2722219. The next prime is 2722241. The reversal of 2722231 is 1322272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2722231 - 2¹¹ = 2720183 is a prime.

It is a super-2 number, since 2×2722231² = 14821083234722, which contains 22 as substring.

2722231 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2722199 and 2722208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361115 + 1361116.

It is an arithmetic number, because the mean of its divisors is an integer number (1361116).

2^2722231 is an apocalyptic number.

2722231 is the 1044-th centered pentagonal number.

2722231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722231 is an equidigital number, since it uses as much as digits as its factorization.

2722231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 19.

The square root of 2722231 is about 1649.9184828348. The cubic root of 2722231 is about 139.6287955476.

The spelling of 2722231 in words is "two million, seven hundred twenty-two thousand, two hundred thirty-one".