2125012022440 has 64 divisors (see below), whose sum is σ = 4843995552000. Its totient is φ = 838864615680.

The previous prime is 2125012022407. The next prime is 2125012022447. The reversal of 2125012022440 is 442202105212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2125012022447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6866971 + ... + 7169749.

It is an arithmetic number, because the mean of its divisors is an integer number (75687430500).

Almost surely, 2^{2125012022440} is an apocalyptic number.

2125012022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125012022440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2421997776000).

2125012022440 is an abundant number, since it is smaller than the sum of its proper divisors (2718983529560).

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

2125012022440 is a wasteful number, since it uses less digits than its factorization.

2125012022440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305090 (or 305086 counting only the distinct ones).

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

Adding to 2125012022440 its reverse (442202105212), we get a palindrome (2567214127652).

The spelling of 2125012022440 in words is "two trillion, one hundred twenty-five billion, twelve million, twenty-two thousand, four hundred forty".