122222231 has 32 divisors (see below), whose sum is σ = 142248960. Its totient is φ = 104288256.

The previous prime is 122222209. The next prime is 122222239. The reversal of 122222231 is 132222221.

It is a cyclic number.

It is not a de Polignac number, because 122222231 - 2¹⁰ = 122221207 is a prime.

It is a super-2 number, since 2×122222231² = 29876547501234722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1259975 + ... + 1260071.

It is an arithmetic number, because the mean of its divisors is an integer number (4445280).

Almost surely, 2^122222231 is an apocalyptic number.

122222231 is a deficient number, since it is larger than the sum of its proper divisors (20026729).

122222231 is a wasteful number, since it uses less digits than its factorization.

122222231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263.

The product of its digits is 192, while the sum is 17.

The square root of 122222231 is about 11055.4163648413. The cubic root of 122222231 is about 496.2685295316.

Adding to 122222231 its reverse (132222221), we get a palindrome (254444452).

It can be divided in two parts, 122222 and 231, that multiplied together give a palindrome (28233282).

The spelling of 122222231 in words is "one hundred twenty-two million, two hundred twenty-two thousand, two hundred thirty-one".