2200121525 has 12 divisors (see below), whose sum is σ = 3117886752. Its totient is φ = 1508654640.

The previous prime is 2200121519. The next prime is 2200121533. The reversal of 2200121525 is 5251210022.

It is a happy number.

It is not a de Polignac number, because 2200121525 - 2¹⁶ = 2200055989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200121497 and 2200121506.

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 11 ways as a sum of consecutive naturals, for example, 6285887 + ... + 6286236.

It is an arithmetic number, because the mean of its divisors is an integer number (259823896).

Almost surely, 2^2200121525 is an apocalyptic number.

2200121525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2200121525 is a deficient number, since it is larger than the sum of its proper divisors (917765227).

2200121525 is a wasteful number, since it uses less digits than its factorization.

2200121525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572140 (or 12572135 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2200121525 is about 46905.4530411977. The cubic root of 2200121525 is about 1300.6153940431.

Adding to 2200121525 its reverse (5251210022), we get a palindrome (7451331547).

The spelling of 2200121525 in words is "two billion, two hundred million, one hundred twenty-one thousand, five hundred twenty-five".