222471725 has 36 divisors (see below), whose sum is σ = 321166944. Its totient is φ = 149739840.

The previous prime is 222471701. The next prime is 222471749. The reversal of 222471725 is 527174222.

It is an interprime number because it is at equal distance from previous prime (222471701) and next prime (222471749).

It is not a de Polignac number, because 222471725 - 2¹⁰ = 222470701 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222471691 and 222471700.

It is a congruent number.

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 2040971 + ... + 2041079.

It is an arithmetic number, because the mean of its divisors is an integer number (8921304).

Almost surely, 2^222471725 is an apocalyptic number.

222471725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222471725 is a deficient number, since it is larger than the sum of its proper divisors (98695219).

222471725 is a wasteful number, since it uses less digits than its factorization.

222471725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 228 counting only the distinct ones).

The product of its digits is 15680, while the sum is 32.

The square root of 222471725 is about 14915.4860799104. The cubic root of 222471725 is about 605.9334678089.

The spelling of 222471725 in words is "two hundred twenty-two million, four hundred seventy-one thousand, seven hundred twenty-five".