222020525 has 12 divisors (see below), whose sum is σ = 275940672. Its totient is φ = 177206640.

The previous prime is 222020509. The next prime is 222020531. The reversal of 222020525 is 525020222.

It is a happy number.

It is not a de Polignac number, because 222020525 - 2⁴ = 222020509 is a prime.

It is a super-2 number, since 2×222020525² = 98586227042551250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222020497 and 222020506.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1052 + ... + 21098.

It is an arithmetic number, because the mean of its divisors is an integer number (22995056).

Almost surely, 2^222020525 is an apocalyptic number.

222020525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222020525 is a deficient number, since it is larger than the sum of its proper divisors (53920147).

222020525 is a wasteful number, since it uses less digits than its factorization.

222020525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20500 (or 20495 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 222020525 is about 14900.3531837336. The cubic root of 222020525 is about 605.5235547186.

Adding to 222020525 its reverse (525020222), we get a palindrome (747040747).

The spelling of 222020525 in words is "two hundred twenty-two million, twenty thousand, five hundred twenty-five".