12500310022 has 4 divisors (see below), whose sum is σ = 18750465036. Its totient is φ = 6250155010.

The previous prime is 12500309993. The next prime is 12500310023. The reversal of 12500310022 is 22001300521.

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

It is a super-2 number, since 2×12500310022² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12500309978 and 12500310005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500310023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125077504 + ... + 3125077507.

It is an arithmetic number, because the mean of its divisors is an integer number (4687616259).

Almost surely, 2^12500310022 is an apocalyptic number.

12500310022 is a deficient number, since it is larger than the sum of its proper divisors (6250155014).

12500310022 is an equidigital number, since it uses as much as digits as its factorization.

12500310022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6250155013.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 12500310022 its reverse (22001300521), we get a palindrome (34501610543).

The spelling of 12500310022 in words is "twelve billion, five hundred million, three hundred ten thousand, twenty-two".