25103201212 has 12 divisors (see below), whose sum is σ = 45445450680. Its totient is φ = 12118786736.

The previous prime is 25103201177. The next prime is 25103201219. The reversal of 25103201212 is 21210230152.

It is a super-2 number, since 2×25103201212² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25103201212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25103201219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108203338 + ... + 108203569.

It is an arithmetic number, because the mean of its divisors is an integer number (3787120890).

Almost surely, 2^25103201212 is an apocalyptic number.

It is an amenable number.

25103201212 is a deficient number, since it is larger than the sum of its proper divisors (20342249468).

25103201212 is a wasteful number, since it uses less digits than its factorization.

25103201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216406940 (or 216406938 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 25103201212 its reverse (21210230152), we get a palindrome (46313431364).

The spelling of 25103201212 in words is "twenty-five billion, one hundred three million, two hundred one thousand, two hundred twelve".