222947109 has 36 divisors (see below), whose sum is σ = 408676320. Its totient is φ = 115814160.

The previous prime is 222947107. The next prime is 222947111. The reversal of 222947109 is 901749222.

It is an interprime number because it is at equal distance from previous prime (222947107) and next prime (222947111).

It is not a de Polignac number, because 222947109 - 2¹ = 222947107 is a prime.

It is a super-2 number, since 2×222947109² = 99410826822915762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222947107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 18129 + ... + 27830.

It is an arithmetic number, because the mean of its divisors is an integer number (11352120).

Almost surely, 2^222947109 is an apocalyptic number.

It is an amenable number.

222947109 is a deficient number, since it is larger than the sum of its proper divisors (185729211).

222947109 is a wasteful number, since it uses less digits than its factorization.

222947109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45990 (or 45980 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 222947109 is about 14931.4134963841. The cubic root of 222947109 is about 606.3647527987.

It can be divided in two parts, 22294 and 7109, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 222947109 in words is "two hundred twenty-two million, nine hundred forty-seven thousand, one hundred nine".