2125111221200 has 60 divisors (see below), whose sum is σ = 5569723330368. Its totient is φ = 772767715200.

The previous prime is 2125111221193. The next prime is 2125111221217. The reversal of 2125111221200 is 21221115212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241485512 + ... + 241494311.

Almost surely, 2^{2125111221200} is an apocalyptic number.

2125111221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125111221200 is an abundant number, since it is smaller than the sum of its proper divisors (3444612109168).

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

2125111221200 is a wasteful number, since it uses less digits than its factorization.

2125111221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482979852 (or 482979841 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 2125111221200 its reverse (21221115212), we get a palindrome (2146332336412).

The spelling of 2125111221200 in words is "two trillion, one hundred twenty-five billion, one hundred eleven million, two hundred twenty-one thousand, two hundred".