1122223131 has 6 divisors (see below), whose sum is σ = 1620988980. Its totient is φ = 748148748.

The previous prime is 1122223127. The next prime is 1122223211. The reversal of 1122223131 is 1313222211.

It is not a de Polignac number, because 1122223131 - 2² = 1122223127 is a prime.

It is a super-2 number, since 2×1122223131² = 2518769511502886322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1122223031) 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, 62345721 + ... + 62345738.

It is an arithmetic number, because the mean of its divisors is an integer number (270164830).

Almost surely, 2^1122223131 is an apocalyptic number.

1122223131 is a deficient number, since it is larger than the sum of its proper divisors (498765849).

1122223131 is a wasteful number, since it uses less digits than its factorization.

1122223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124691465 (or 124691462 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1122223131 is about 33499.5989677489. The cubic root of 1122223131 is about 1039.1854849679.

Adding to 1122223131 its reverse (1313222211), we get a palindrome (2435445342).

The spelling of 1122223131 in words is "one billion, one hundred twenty-two million, two hundred twenty-three thousand, one hundred thirty-one".