1155232222 has 8 divisors (see below), whose sum is σ = 1748183616. Its totient is φ = 572504352.

The previous prime is 1155232171. The next prime is 1155232237. The reversal of 1155232222 is 2222325511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1155232222² = 2669122973494114568, 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 in 3 ways as a sum of consecutive naturals, for example, 2555598 + ... + 2556049.

It is an arithmetic number, because the mean of its divisors is an integer number (218522952).

Almost surely, 2^1155232222 is an apocalyptic number.

1155232222 is a deficient number, since it is larger than the sum of its proper divisors (592951394).

1155232222 is a wasteful number, since it uses less digits than its factorization.

1155232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111762.

The product of its digits is 2400, while the sum is 25.

The square root of 1155232222 is about 33988.7072716807. The cubic root of 1155232222 is about 1049.2760609230.

Adding to 1155232222 its reverse (2222325511), we get a palindrome (3377557733).

The spelling of 1155232222 in words is "one billion, one hundred fifty-five million, two hundred thirty-two thousand, two hundred twenty-two".