25022122121112 has 128 divisors (see below), whose sum is σ = 69766302067200. Its totient is φ = 7432092223488.

The previous prime is 25022122121089. The next prime is 25022122121167. The reversal of 25022122121112 is 21112122122052.

It is a super-2 number, since 2×25022122121112² (a number of 28 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10915378 + ... + 13007294.

It is an arithmetic number, because the mean of its divisors is an integer number (545049234900).

Almost surely, 2^{25022122121112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25022122121112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34883151033600).

25022122121112 is an abundant number, since it is smaller than the sum of its proper divisors (44744179946088).

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

25022122121112 is a wasteful number, since it uses less digits than its factorization.

25022122121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093505 (or 2093501 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 25022122121112 its reverse (21112122122052), we get a palindrome (46134244243164).

The spelling of 25022122121112 in words is "twenty-five trillion, twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twelve".