109222779 has 16 divisors (see below), whose sum is σ = 151683840. Its totient is φ = 69844320.

The previous prime is 109222769. The next prime is 109222781. The reversal of 109222779 is 977222901.

It is not a de Polignac number, because 109222779 - 2¹³ = 109214587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109222759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (9480240).

Almost surely, 2^109222779 is an apocalyptic number.

109222779 is a deficient number, since it is larger than the sum of its proper divisors (42461061).

109222779 is a wasteful number, since it uses less digits than its factorization.

109222779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13970.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 109222779 is about 10450.9702420397. The cubic root of 109222779 is about 478.0108349405.

It can be divided in two parts, 1092 and 22779, that added together give a triangular number (23871 = T₂₁₈).

The spelling of 109222779 in words is "one hundred nine million, two hundred twenty-two thousand, seven hundred seventy-nine".