222109082 has 32 divisors (see below), whose sum is σ = 364924560. Its totient is φ = 100776960.

The previous prime is 222109081. The next prime is 222109103. The reversal of 222109082 is 280901222.

It can be written as a sum of positive squares in 8 ways, for example, as 3690241 + 218418841 = 1921^2 + 14779^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (222109081) 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, 512738 + ... + 513170.

Almost surely, 2^222109082 is an apocalyptic number.

222109082 is a deficient number, since it is larger than the sum of its proper divisors (142815478).

222109082 is a wasteful number, since it uses less digits than its factorization.

222109082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 222109082 is about 14903.3245284400. The cubic root of 222109082 is about 605.6040521133.

The spelling of 222109082 in words is "two hundred twenty-two million, one hundred nine thousand, eighty-two".