222461990 has 8 divisors (see below), whose sum is σ = 400431600. Its totient is φ = 88984792.

The previous prime is 222461959. The next prime is 222461999. The reversal of 222461990 is 99164222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 222461990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222461999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11123090 + ... + 11123109.

It is an arithmetic number, because the mean of its divisors is an integer number (50053950).

Almost surely, 2^222461990 is an apocalyptic number.

222461990 is a deficient number, since it is larger than the sum of its proper divisors (177969610).

222461990 is a wasteful number, since it uses less digits than its factorization.

222461990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22246206.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 222461990 is about 14915.1597376629. The cubic root of 222461990 is about 605.9246294598.

The spelling of 222461990 in words is "two hundred twenty-two million, four hundred sixty-one thousand, nine hundred ninety".