122205231 has 12 divisors (see below), whose sum is σ = 186902352. Its totient is φ = 76677696.

The previous prime is 122205203. The next prime is 122205263. The reversal of 122205231 is 132502221.

122205231 is a `hidden beast` number, since 122 + 20 + 523 + 1 = 666.

It is not a de Polignac number, because 122205231 - 2⁷ = 122205103 is a prime.

It is a super-2 number, since 2×122205231² = 29868236967526722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122205331) 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, 399211 + ... + 399516.

It is an arithmetic number, because the mean of its divisors is an integer number (15575196).

Almost surely, 2^122205231 is an apocalyptic number.

122205231 is a deficient number, since it is larger than the sum of its proper divisors (64697121).

122205231 is a wasteful number, since it uses less digits than its factorization.

122205231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798750 (or 798747 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122205231 is about 11054.6474842032. The cubic root of 122205231 is about 496.2455196528.

Adding to 122205231 its reverse (132502221), we get a palindrome (254707452).

The spelling of 122205231 in words is "one hundred twenty-two million, two hundred five thousand, two hundred thirty-one".