1105105212 has 18 divisors (see below), whose sum is σ = 2793460488. Its totient is φ = 368368392.

The previous prime is 1105105129. The next prime is 1105105229. The reversal of 1105105212 is 2125015011.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15348648 + ... + 15348719.

Almost surely, 2^1105105212 is an apocalyptic number.

1105105212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1105105212 is an abundant number, since it is smaller than the sum of its proper divisors (1688355276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1105105212 is a wasteful number, since it uses less digits than its factorization.

1105105212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30697377 (or 30697372 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 1105105212 is about 33243.1227775009. The cubic root of 1105105212 is about 1033.8746236099.

The spelling of 1105105212 in words is "one billion, one hundred five million, one hundred five thousand, two hundred twelve".