12221022002000 has 160 divisors (see below), whose sum is σ = 34557316594944. Its totient is φ = 4092621120000.

The previous prime is 12221022001949. The next prime is 12221022002003. The reversal of 12221022002000 is 20022012221.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221022002003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9548351 + ... + 10752350.

Almost surely, 2^{12221022002000} is an apocalyptic number.

12221022002000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221022002000 is an abundant number, since it is smaller than the sum of its proper divisors (22336294592944).

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

12221022002000 is a wasteful number, since it uses less digits than its factorization.

12221022002000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20300774 (or 20300758 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12221022002000 its reverse (20022012221), we get a palindrome (12241044014221).

The spelling of 12221022002000 in words is "twelve trillion, two hundred twenty-one billion, twenty-two million, two thousand".