15121226006 has 4 divisors (see below), whose sum is σ = 22681839012. Its totient is φ = 7560613002.

The previous prime is 15121225991. The next prime is 15121226027. The reversal of 15121226006 is 60062212151.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3780306500 + ... + 3780306503.

It is an arithmetic number, because the mean of its divisors is an integer number (5670459753).

Almost surely, 2^15121226006 is an apocalyptic number.

15121226006 is a deficient number, since it is larger than the sum of its proper divisors (7560613006).

15121226006 is an equidigital number, since it uses as much as digits as its factorization.

15121226006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7560613005.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 15121226006 its reverse (60062212151), we get a palindrome (75183438157).

The spelling of 15121226006 in words is "fifteen billion, one hundred twenty-one million, two hundred twenty-six thousand, six".