2100220412425 has 24 divisors (see below), whose sum is σ = 2717595723456. Its totient is φ = 1607070104640.

The previous prime is 2100220412377. The next prime is 2100220412431. The reversal of 2100220412425 is 5242140220012.

It is a happy number.

It is not a de Polignac number, because 2100220412425 - 2¹⁵ = 2100220379657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100220412425.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26587087 + ... + 26665963.

It is an arithmetic number, because the mean of its divisors is an integer number (113233155144).

Almost surely, 2^{2100220412425} is an apocalyptic number.

2100220412425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2100220412425 is a deficient number, since it is larger than the sum of its proper divisors (617375311031).

2100220412425 is a wasteful number, since it uses less digits than its factorization.

2100220412425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125217 (or 125212 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 2100220412425 its reverse (5242140220012), we get a palindrome (7342360632437).

The spelling of 2100220412425 in words is "two trillion, one hundred billion, two hundred twenty million, four hundred twelve thousand, four hundred twenty-five".