1222331031 has 6 divisors (see below), whose sum is σ = 1765589280. Its totient is φ = 814887348.

The previous prime is 1222331017. The next prime is 1222331039. The reversal of 1222331031 is 1301332221.

It is not a de Polignac number, because 1222331031 - 2⁵ = 1222330999 is a prime.

It is a super-2 number, since 2×1222331031² = 2988186298691045922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222330995 and 1222331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222331039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67907271 + ... + 67907288.

It is an arithmetic number, because the mean of its divisors is an integer number (294264880).

Almost surely, 2^1222331031 is an apocalyptic number.

1222331031 is a deficient number, since it is larger than the sum of its proper divisors (543258249).

1222331031 is a wasteful number, since it uses less digits than its factorization.

1222331031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135814565 (or 135814562 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1222331031 is about 34961.8510808567. The cubic root of 1222331031 is about 1069.2098370471.

Adding to 1222331031 its reverse (1301332221), we get a palindrome (2523663252).

The spelling of 1222331031 in words is "one billion, two hundred twenty-two million, three hundred thirty-one thousand, thirty-one".