125010220001 has 4 divisors (see below), whose sum is σ = 132363762372. Its totient is φ = 117656677632.

The previous prime is 125010219979. The next prime is 125010220061. The reversal of 125010220001 is 100022010521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45232782400 + 79777437601 = 212680^2 + 282449^2 .

It is a cyclic number.

It is not a de Polignac number, because 125010220001 - 2³⁰ = 123936478177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125010220061) 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, 3676771160 + ... + 3676771193.

It is an arithmetic number, because the mean of its divisors is an integer number (33090940593).

Almost surely, 2^125010220001 is an apocalyptic number.

It is an amenable number.

125010220001 is a deficient number, since it is larger than the sum of its proper divisors (7353542371).

125010220001 is an equidigital number, since it uses as much as digits as its factorization.

125010220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7353542370.

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 125010220001 its reverse (100022010521), we get a palindrome (225032230522).

The spelling of 125010220001 in words is "one hundred twenty-five billion, ten million, two hundred twenty thousand, one".