2100220432 has 10 divisors (see below), whose sum is σ = 4069177118. Its totient is φ = 1050110208.

The previous prime is 2100220379. The next prime is 2100220481. The reversal of 2100220432 is 2340220012.

It can be written as a sum of positive squares in only one way, i.e., 1394574336 + 705646096 = 37344^2 + 26564^2 .

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 131263777 = 2100220432 / (2 + 1 + 0 + 0 + 2 + 2 + 0 + 4 + 3 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65631873 + ... + 65631904.

Almost surely, 2^2100220432 is an apocalyptic number.

It is an amenable number.

2100220432 is a deficient number, since it is larger than the sum of its proper divisors (1968956686).

2100220432 is a wasteful number, since it uses less digits than its factorization.

2100220432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131263785 (or 131263779 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2100220432 is about 45828.1619967461. The cubic root of 2100220432 is about 1280.6239698685.

Adding to 2100220432 its reverse (2340220012), we get a palindrome (4440440444).

The spelling of 2100220432 in words is "two billion, one hundred million, two hundred twenty thousand, four hundred thirty-two".