222133525 has 24 divisors (see below), whose sum is σ = 284088960. Its totient is φ = 172218240.

The previous prime is 222133523. The next prime is 222133529. The reversal of 222133525 is 525331222.

It is not a de Polignac number, because 222133525 - 2¹ = 222133523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 222133525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222133523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106644 + ... + 108706.

It is an arithmetic number, because the mean of its divisors is an integer number (11837040).

Almost surely, 2^222133525 is an apocalyptic number.

222133525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222133525 is a deficient number, since it is larger than the sum of its proper divisors (61955435).

222133525 is a wasteful number, since it uses less digits than its factorization.

222133525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205 (or 2200 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 222133525 is about 14904.1445578067. The cubic root of 222133525 is about 605.6262667788.

Adding to 222133525 its reverse (525331222), we get a palindrome (747464747).

The spelling of 222133525 in words is "two hundred twenty-two million, one hundred thirty-three thousand, five hundred twenty-five".