109102212 has 36 divisors (see below), whose sum is σ = 277782960. Its totient is φ = 36104112.

The previous prime is 109102211. The next prime is 109102219. The reversal of 109102212 is 212201901.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (109102211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5898 + ... + 15905.

Almost surely, 2^109102212 is an apocalyptic number.

109102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109102212 is an abundant number, since it is smaller than the sum of its proper divisors (168680748).

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

109102212 is a wasteful number, since it uses less digits than its factorization.

109102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21952 (or 21947 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 109102212 is about 10445.2004289051. The cubic root of 109102212 is about 477.8348840020.

The spelling of 109102212 in words is "one hundred nine million, one hundred two thousand, two hundred twelve".