12221211211000 has 64 divisors (see below), whose sum is σ = 31197419192160. Its totient is φ = 4444076800000.

The previous prime is 12221211210991. The next prime is 12221211211037. The reversal of 12221211211000 is 11211212221.

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, 555498601 + ... + 555520600.

Almost surely, 2^{12221211211000} is an apocalyptic number.

12221211211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221211211000 is an abundant number, since it is smaller than the sum of its proper divisors (18976207981160).

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

12221211211000 is a wasteful number, since it uses less digits than its factorization.

12221211211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111019233 (or 1111019219 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12221211211000 its reverse (11211212221), we get a palindrome (12232422423221).

The spelling of 12221211211000 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, two hundred eleven thousand".