1100222231 has 4 divisors (see below), whose sum is σ = 1103737632. Its totient is φ = 1096706832.

The previous prime is 1100222197. The next prime is 1100222251. The reversal of 1100222231 is 1322220011.

It is a happy number.

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 1100222231 - 2¹⁰ = 1100221207 is a prime.

It is a super-2 number, since 2×1100222231² = 2420977915173234722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100222251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757231 + ... + 1757856.

It is an arithmetic number, because the mean of its divisors is an integer number (275934408).

Almost surely, 2^1100222231 is an apocalyptic number.

1100222231 is a deficient number, since it is larger than the sum of its proper divisors (3515401).

1100222231 is an equidigital number, since it uses as much as digits as its factorization.

1100222231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515400.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1100222231 is about 33169.5979927403. The cubic root of 1100222231 is about 1032.3496273337.

Adding to 1100222231 its reverse (1322220011), we get a palindrome (2422442242).

It can be divided in two parts, 11002 and 22231, that added together give a palindrome (33233).

The spelling of 1100222231 in words is "one billion, one hundred million, two hundred twenty-two thousand, two hundred thirty-one".