125110221451 has 2 divisors, whose sum is σ = 125110221452. Its totient is φ = 125110221450.

The previous prime is 125110221421. The next prime is 125110221461. The reversal of 125110221451 is 154122011521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125110221451 - 2⁷ = 125110221323 is a prime.

It is not a weakly prime, because it can be changed into another prime (125110221421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62555110725 + 62555110726.

It is an arithmetic number, because the mean of its divisors is an integer number (62555110726).

Almost surely, 2^125110221451 is an apocalyptic number.

125110221451 is a deficient number, since it is larger than the sum of its proper divisors (1).

125110221451 is an equidigital number, since it uses as much as digits as its factorization.

125110221451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 125110221451 its reverse (154122011521), we get a palindrome (279232232972).

The spelling of 125110221451 in words is "one hundred twenty-five billion, one hundred ten million, two hundred twenty-one thousand, four hundred fifty-one".