109222012 has 12 divisors (see below), whose sum is σ = 191960496. Its totient is φ = 54376160.

The previous prime is 109221997. The next prime is 109222019. The reversal of 109222012 is 210222901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109222019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57664 + ... + 59527.

It is an arithmetic number, because the mean of its divisors is an integer number (15996708).

Almost surely, 2^109222012 is an apocalyptic number.

It is an amenable number.

109222012 is a deficient number, since it is larger than the sum of its proper divisors (82738484).

109222012 is a wasteful number, since it uses less digits than its factorization.

109222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117428 (or 117426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 109222012 is about 10450.9335468177. The cubic root of 109222012 is about 478.0097160190.

Adding to 109222012 its reverse (210222901), we get a palindrome (319444913).

It can be divided in two parts, 1092 and 22012, that added together give a square (23104 = 152²).

The spelling of 109222012 in words is "one hundred nine million, two hundred twenty-two thousand, twelve".