10121250512 has 40 divisors (see below), whose sum is σ = 20256298752. Its totient is φ = 4894041600.

The previous prime is 10121250511. The next prime is 10121250527. The reversal of 10121250512 is 21505212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121250511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820712 + ... + 832952.

Almost surely, 2^10121250512 is an apocalyptic number.

It is an amenable number.

10121250512 is an abundant number, since it is smaller than the sum of its proper divisors (10135048240).

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

10121250512 is a wasteful number, since it uses less digits than its factorization.

10121250512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13947 (or 13941 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 10121250512 its reverse (21505212101), we get a palindrome (31626462613).

The spelling of 10121250512 in words is "ten billion, one hundred twenty-one million, two hundred fifty thousand, five hundred twelve".