2221233525 has 36 divisors (see below), whose sum is σ = 4546832992. Its totient is φ = 1015420320.

The previous prime is 2221233517. The next prime is 2221233527. The reversal of 2221233525 is 5253321222.

It is not a de Polignac number, because 2221233525 - 2³ = 2221233517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221233527) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 703579 + ... + 706728.

Almost surely, 2^2221233525 is an apocalyptic number.

2221233525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2221233525 is an abundant number, since it is smaller than the sum of its proper divisors (2325599467).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2221233525 is a wasteful number, since it uses less digits than its factorization.

2221233525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410330 (or 1410322 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 2221233525 is about 47129.9641947668. The cubic root of 2221233525 is about 1304.7623207429.

Adding to 2221233525 its reverse (5253321222), we get a palindrome (7474554747).

The spelling of 2221233525 in words is "two billion, two hundred twenty-one million, two hundred thirty-three thousand, five hundred twenty-five".