12221000230020 has 96 divisors (see below), whose sum is σ = 34271181302400. Its totient is φ = 3253945887744.

The previous prime is 12221000230003. The next prime is 12221000230057. The reversal of 12221000230020 is 2003200012221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 595932607 + ... + 595953113.

It is an arithmetic number, because the mean of its divisors is an integer number (356991471900).

Almost surely, 2^{12221000230020} is an apocalyptic number.

12221000230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221000230020 is an abundant number, since it is smaller than the sum of its proper divisors (22050181072380).

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

12221000230020 is a wasteful number, since it uses less digits than its factorization.

12221000230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35237 (or 35235 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12221000230020 its reverse (2003200012221), we get a palindrome (14224200242241).

The spelling of 12221000230020 in words is "twelve trillion, two hundred twenty-one billion, two hundred thirty thousand, twenty".