125441640022 has 4 divisors (see below), whose sum is σ = 188162460036. Its totient is φ = 62720820010.

The previous prime is 125441640011. The next prime is 125441640029. The reversal of 125441640022 is 220046144521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 220046144521 = 7 ⋅31435163503.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125441640029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31360410004 + ... + 31360410007.

It is an arithmetic number, because the mean of its divisors is an integer number (47040615009).

Almost surely, 2^125441640022 is an apocalyptic number.

125441640022 is a deficient number, since it is larger than the sum of its proper divisors (62720820014).

125441640022 is an equidigital number, since it uses as much as digits as its factorization.

125441640022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62720820013.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 125441640022 its reverse (220046144521), we get a palindrome (345487784543).

The spelling of 125441640022 in words is "one hundred twenty-five billion, four hundred forty-one million, six hundred forty thousand, twenty-two".