1100155228 has 24 divisors (see below), whose sum is σ = 2015885088. Its totient is φ = 524352576.

The previous prime is 1100155219. The next prime is 1100155237. The reversal of 1100155228 is 8225510011.

It is an interprime number because it is at equal distance from previous prime (1100155219) and next prime (1100155237).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6550 + ... + 47362.

It is an arithmetic number, because the mean of its divisors is an integer number (83995212).

Almost surely, 2^1100155228 is an apocalyptic number.

It is an amenable number.

1100155228 is a deficient number, since it is larger than the sum of its proper divisors (915729860).

1100155228 is a wasteful number, since it uses less digits than its factorization.

1100155228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41133 (or 41131 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 1100155228 is about 33168.5879711513. The cubic root of 1100155228 is about 1032.3286703779.

Adding to 1100155228 its reverse (8225510011), we get a palindrome (9325665239).

The spelling of 1100155228 in words is "one billion, one hundred million, one hundred fifty-five thousand, two hundred twenty-eight".