12221200211020 has 24 divisors (see below), whose sum is σ = 27174198117024. Its totient is φ = 4600922432256.

The previous prime is 12221200210997. The next prime is 12221200211053. The reversal of 12221200211020 is 2011200212221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12221200210985 and 12221200211003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17972352912 + ... + 17972353591.

It is an arithmetic number, because the mean of its divisors is an integer number (1132258254876).

Almost surely, 2^{12221200211020} is an apocalyptic number.

12221200211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221200211020 is an abundant number, since it is smaller than the sum of its proper divisors (14952997906004).

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

12221200211020 is a wasteful number, since it uses less digits than its factorization.

12221200211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35944706529 (or 35944706527 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12221200211020 its reverse (2011200212221), we get a palindrome (14232400423241).

The spelling of 12221200211020 in words is "twelve trillion, two hundred twenty-one billion, two hundred million, two hundred eleven thousand, twenty".