125212212051 has 8 divisors (see below), whose sum is σ = 170099609040. Its totient is φ = 81899811552.

The previous prime is 125212212019. The next prime is 125212212061. The reversal of 125212212051 is 150212212521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125212212051 - 2⁵ = 125212212019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125212212061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393748936 + ... + 393749253.

It is an arithmetic number, because the mean of its divisors is an integer number (21262451130).

Almost surely, 2^125212212051 is an apocalyptic number.

125212212051 is a deficient number, since it is larger than the sum of its proper divisors (44887396989).

125212212051 is an equidigital number, since it uses as much as digits as its factorization.

125212212051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787498245.

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 125212212051 its reverse (150212212521), we get a palindrome (275424424572).

The spelling of 125212212051 in words is "one hundred twenty-five billion, two hundred twelve million, two hundred twelve thousand, fifty-one".