222740901 has 16 divisors (see below), whose sum is σ = 344334720. Its totient is φ = 142037280.

The previous prime is 222740893. The next prime is 222740911. The reversal of 222740901 is 109047222.

It is not a de Polignac number, because 222740901 - 2³ = 222740893 is a prime.

It is a super-2 number, since 2×222740901² = 99227017956583602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222740911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178720 + ... + 179961.

It is an arithmetic number, because the mean of its divisors is an integer number (21520920).

Almost surely, 2^222740901 is an apocalyptic number.

It is an amenable number.

222740901 is a deficient number, since it is larger than the sum of its proper divisors (121593819).

222740901 is a wasteful number, since it uses less digits than its factorization.

222740901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358713 (or 358707 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 222740901 is about 14924.5067255169. The cubic root of 222740901 is about 606.1777490544.

The spelling of 222740901 in words is "two hundred twenty-two million, seven hundred forty thousand, nine hundred one".