1101208912 has 20 divisors (see below), whose sum is σ = 2135125620. Its totient is φ = 550208768.

The previous prime is 1101208861. The next prime is 1101208937. The reversal of 1101208912 is 2198021011.

It can be written as a sum of positive squares in 2 ways, for example, as 738534976 + 362673936 = 27176^2 + 19044^2 .

It is a super-2 number, since 2×1101208912² = 2425322135736447488, 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, 1087 + ... + 46942.

It is an arithmetic number, because the mean of its divisors is an integer number (106756281).

Almost surely, 2^1101208912 is an apocalyptic number.

It is an amenable number.

1101208912 is a deficient number, since it is larger than the sum of its proper divisors (1033916708).

1101208912 is a wasteful number, since it uses less digits than its factorization.

1101208912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49470 (or 49464 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 1101208912 is about 33184.4679330557. The cubic root of 1101208912 is about 1032.6581393754.

Adding to 1101208912 its reverse (2198021011), we get a palindrome (3299229923).

The spelling of 1101208912 in words is "one billion, one hundred one million, two hundred eight thousand, nine hundred twelve".