222012231 has 16 divisors (see below), whose sum is σ = 358205184. Its totient is φ = 119401344.

The previous prime is 222012229. The next prime is 222012251. The reversal of 222012231 is 132210222.

It is a happy number.

It is not a de Polignac number, because 222012231 - 2¹ = 222012229 is a prime.

It is a super-2 number, since 2×222012231² = 98578861427194722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012251) 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, 310585 + ... + 311298.

It is an arithmetic number, because the mean of its divisors is an integer number (22387824).

Almost surely, 2^222012231 is an apocalyptic number.

222012231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222012231 is a deficient number, since it is larger than the sum of its proper divisors (136192953).

222012231 is a wasteful number, since it uses less digits than its factorization.

222012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621910.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 222012231 is about 14900.0748655837. The cubic root of 222012231 is about 605.5160144625.

Adding to 222012231 its reverse (132210222), we get a palindrome (354222453).

The spelling of 222012231 in words is "two hundred twenty-two million, twelve thousand, two hundred thirty-one".