2125202280 has 64 divisors (see below), whose sum is σ = 6462970560. Its totient is φ = 558955008.

The previous prime is 2125202257. The next prime is 2125202291. The reversal of 2125202280 is 822025212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2125202280.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112542 + ... + 130061.

It is an arithmetic number, because the mean of its divisors is an integer number (100983915).

Almost surely, 2^2125202280 is an apocalyptic number.

2125202280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125202280 is an abundant number, since it is smaller than the sum of its proper divisors (4337768280).

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

2125202280 is a wasteful number, since it uses less digits than its factorization.

2125202280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242690 (or 242686 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 2125202280 is about 46099.9162689044. The cubic root of 2125202280 is about 1285.6815876693.

Adding to 2125202280 its reverse (822025212), we get a palindrome (2947227492).

The spelling of 2125202280 in words is "two billion, one hundred twenty-five million, two hundred two thousand, two hundred eighty".