1131252022 has 4 divisors (see below), whose sum is σ = 1696878036. Its totient is φ = 565626010.

The previous prime is 1131251999. The next prime is 1131252037. The reversal of 1131252022 is 2202521311.

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

It is a super-2 number, since 2×1131252022² = 2559462274558176968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282813004 + ... + 282813007.

It is an arithmetic number, because the mean of its divisors is an integer number (424219509).

Almost surely, 2^1131252022 is an apocalyptic number.

1131252022 is a deficient number, since it is larger than the sum of its proper divisors (565626014).

1131252022 is an equidigital number, since it uses as much as digits as its factorization.

1131252022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565626013.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1131252022 is about 33634.0901764861. The cubic root of 1131252022 is about 1041.9649801634.

Adding to 1131252022 its reverse (2202521311), we get a palindrome (3333773333).

The spelling of 1131252022 in words is "one billion, one hundred thirty-one million, two hundred fifty-two thousand, twenty-two".