2101611252 has 24 divisors (see below), whose sum is σ = 5280972256. Its totient is φ = 646649568.

The previous prime is 2101611229. The next prime is 2101611271. The reversal of 2101611252 is 2521161012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6735778 + ... + 6736089.

Almost surely, 2^2101611252 is an apocalyptic number.

It is an amenable number.

2101611252 is an abundant number, since it is smaller than the sum of its proper divisors (3179361004).

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

2101611252 is a wasteful number, since it uses less digits than its factorization.

2101611252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13471887 (or 13471885 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 2101611252 is about 45843.3337792966. Note that the first 3 decimals coincide. The cubic root of 2101611252 is about 1280.9065948698.

Adding to 2101611252 its reverse (2521161012), we get a palindrome (4622772264).

The spelling of 2101611252 in words is "two billion, one hundred one million, six hundred eleven thousand, two hundred fifty-two".