222209140 has 12 divisors (see below), whose sum is σ = 466639236. Its totient is φ = 88883648.

The previous prime is 222209137. The next prime is 222209173. The reversal of 222209140 is 41902222.

It can be written as a sum of positive squares in 2 ways, for example, as 91929744 + 130279396 = 9588^2 + 11414^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555209 + ... + 5555248.

It is an arithmetic number, because the mean of its divisors is an integer number (38886603).

Almost surely, 2^222209140 is an apocalyptic number.

222209140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222209140 is an abundant number, since it is smaller than the sum of its proper divisors (244430096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222209140 is a wasteful number, since it uses less digits than its factorization.

222209140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110466 (or 11110464 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 222209140 is about 14906.6810524677. The cubic root of 222209140 is about 605.6949780564.

The spelling of 222209140 in words is "two hundred twenty-two million, two hundred nine thousand, one hundred forty".