22077231 has 16 divisors (see below), whose sum is σ = 32350080. Its totient is φ = 13281120.

The previous prime is 22077193. The next prime is 22077241. The reversal of 22077231 is 13277022.

It is not a de Polignac number, because 22077231 - 2¹⁴ = 22060847 is a prime.

It is a super-2 number, since 2×22077231² = 974808257254722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181 + ... + 6993.

It is an arithmetic number, because the mean of its divisors is an integer number (2021880).

Almost surely, 2^22077231 is an apocalyptic number.

22077231 is a deficient number, since it is larger than the sum of its proper divisors (10272849).

22077231 is a wasteful number, since it uses less digits than its factorization.

22077231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 22077231 is about 4698.6413993834. The cubic root of 22077231 is about 280.5314354340.

The spelling of 22077231 in words is "twenty-two million, seventy-seven thousand, two hundred thirty-one".