12221545006 has 32 divisors (see below), whose sum is σ = 20876921856. Its totient is φ = 5311548000.

The previous prime is 12221545003. The next prime is 12221545033. The reversal of 12221545006 is 60054512221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221545003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2320416 + ... + 2325676.

It is an arithmetic number, because the mean of its divisors is an integer number (652403808).

Almost surely, 2^12221545006 is an apocalyptic number.

12221545006 is a deficient number, since it is larger than the sum of its proper divisors (8655376850).

12221545006 is a wasteful number, since it uses less digits than its factorization.

12221545006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9888.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 12221545006 in words is "twelve billion, two hundred twenty-one million, five hundred forty-five thousand, six".