13221223123000 has 64 divisors (see below), whose sum is σ = 30941445506400. Its totient is φ = 5287842515200.

The previous prime is 13221223122971. The next prime is 13221223123013. The reversal of 13221223123000 is 32132212231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7414692 + ... + 9023308.

Almost surely, 2^{13221223123000} is an apocalyptic number.

13221223123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13221223123000 is an abundant number, since it is smaller than the sum of its proper divisors (17720222383400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221223123000 is a wasteful number, since it uses less digits than its factorization.

13221223123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616857 (or 1616843 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13221223123000 its reverse (32132212231), we get a palindrome (13253355335231).

The spelling of 13221223123000 in words is "thirteen trillion, two hundred twenty-one billion, two hundred twenty-three million, one hundred twenty-three thousand".