1156331222 has 16 divisors (see below), whose sum is σ = 1828262400. Its totient is φ = 546993000.

The previous prime is 1156331221. The next prime is 1156331227. The reversal of 1156331222 is 2221336511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1156331191 and 1156331200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156331221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8279 + ... + 48797.

It is an arithmetic number, because the mean of its divisors is an integer number (114266400).

Almost surely, 2^1156331222 is an apocalyptic number.

1156331222 is a deficient number, since it is larger than the sum of its proper divisors (671931178).

1156331222 is a wasteful number, since it uses less digits than its factorization.

1156331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41291.

The product of its digits is 2160, while the sum is 26.

The square root of 1156331222 is about 34004.8705629061. The cubic root of 1156331222 is about 1049.6086892574.

Adding to 1156331222 its reverse (2221336511), we get a palindrome (3377667733).

The spelling of 1156331222 in words is "one billion, one hundred fifty-six million, three hundred thirty-one thousand, two hundred twenty-two".