222010025525 has 24 divisors (see below), whose sum is σ = 277895208360. Its totient is φ = 175929719040.

The previous prime is 222010025521. The next prime is 222010025579. The reversal of 222010025525 is 525520010222.

It can be written as a sum of positive squares in 12 ways, for example, as 2916756049 + 219093269476 = 54007^2 + 468074^2 .

It is not a de Polignac number, because 222010025525 - 2² = 222010025521 is a prime.

It is a super-2 number, since 2×222010025525² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222010025494 and 222010025503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222010025521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12234359 + ... + 12252491.

It is an arithmetic number, because the mean of its divisors is an integer number (11578967015).

Almost surely, 2^222010025525 is an apocalyptic number.

222010025525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

222010025525 is a deficient number, since it is larger than the sum of its proper divisors (55885182835).

222010025525 is a wasteful number, since it uses less digits than its factorization.

222010025525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22745 (or 22740 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

Adding to 222010025525 its reverse (525520010222), we get a palindrome (747530035747).

The spelling of 222010025525 in words is "two hundred twenty-two billion, ten million, twenty-five thousand, five hundred twenty-five".