125221166430 has 16 divisors (see below), whose sum is σ = 300530799504. Its totient is φ = 33392311040.

The previous prime is 125221166393. The next prime is 125221166449. The reversal of 125221166430 is 34661122521.

It is a junction number, because it is equal to n+sod(n) for n = 125221166391 and 125221166400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087019411 + ... + 2087019470.

It is an arithmetic number, because the mean of its divisors is an integer number (18783174969).

Almost surely, 2^125221166430 is an apocalyptic number.

125221166430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125221166430 is an abundant number, since it is smaller than the sum of its proper divisors (175309633074).

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

125221166430 is a wasteful number, since it uses less digits than its factorization.

125221166430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4174038891.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 125221166430 its reverse (34661122521), we get a palindrome (159882288951).

The spelling of 125221166430 in words is "one hundred twenty-five billion, two hundred twenty-one million, one hundred sixty-six thousand, four hundred thirty".