10125211266501 has 4 divisors (see below), whose sum is σ = 13500281688672. Its totient is φ = 6750140844332.

The previous prime is 10125211266497. The next prime is 10125211266557. The reversal of 10125211266501 is 10566211252101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10125211266501 - 2² = 10125211266497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10125211266571) 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, 1687535211081 + ... + 1687535211086.

It is an arithmetic number, because the mean of its divisors is an integer number (3375070422168).

Almost surely, 2^{10125211266501} is an apocalyptic number.

It is an amenable number.

10125211266501 is a deficient number, since it is larger than the sum of its proper divisors (3375070422171).

10125211266501 is an equidigital number, since it uses as much as digits as its factorization.

10125211266501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375070422170.

The product of its (nonzero) digits is 7200, while the sum is 33.

The spelling of 10125211266501 in words is "ten trillion, one hundred twenty-five billion, two hundred eleven million, two hundred sixty-six thousand, five hundred one".