222262461 has 20 divisors (see below), whose sum is σ = 332883100. Its totient is φ = 147790656.

The previous prime is 222262457. The next prime is 222262477. The reversal of 222262461 is 164262222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 178623225 + 43639236 = 13365^2 + 6606^2 .

It is not a de Polignac number, because 222262461 - 2² = 222262457 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222262561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29775 + ... + 36483.

It is an arithmetic number, because the mean of its divisors is an integer number (16644155).

Almost surely, 2^222262461 is an apocalyptic number.

It is an amenable number.

222262461 is a deficient number, since it is larger than the sum of its proper divisors (110620639).

222262461 is an equidigital number, since it uses as much as digits as its factorization.

222262461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130 (or 7121 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 222262461 is about 14908.4694385440. The cubic root of 222262461 is about 605.7434214268.

The spelling of 222262461 in words is "two hundred twenty-two million, two hundred sixty-two thousand, four hundred sixty-one".