1222132831 has 4 divisors (see below), whose sum is σ = 1224642832. Its totient is φ = 1219622832.

The previous prime is 1222132783. The next prime is 1222132841. The reversal of 1222132831 is 1382312221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222132831 - 2¹³ = 1222124639 is a prime.

It is a super-2 number, since 2×1222132831² = 2987217313216149122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222132796 and 1222132805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222132841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254270 + ... + 1255243.

It is an arithmetic number, because the mean of its divisors is an integer number (306160708).

Almost surely, 2^1222132831 is an apocalyptic number.

1222132831 is a deficient number, since it is larger than the sum of its proper divisors (2510001).

1222132831 is an equidigital number, since it uses as much as digits as its factorization.

1222132831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510000.

The product of its digits is 1152, while the sum is 25.

The square root of 1222132831 is about 34959.0164478350. The cubic root of 1222132831 is about 1069.1520434164.

The spelling of 1222132831 in words is "one billion, two hundred twenty-two million, one hundred thirty-two thousand, eight hundred thirty-one".