12221210020122 has 48 divisors (see below), whose sum is σ = 28041141727872. Its totient is φ = 3833524160640.

The previous prime is 12221210020111. The next prime is 12221210020127. The reversal of 12221210020122 is 22102001212221.

It is a happy number.

12221210020122 is a `hidden beast` number, since 12 + 221 + 210 + 0 + 201 + 22 = 666.

12221210020122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12221210020095 and 12221210020104.

It is not an unprimeable number, because it can be changed into a prime (12221210020127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000704 + ... + 5044187.

It is an arithmetic number, because the mean of its divisors is an integer number (584190452664).

Almost surely, 2^{12221210020122} is an apocalyptic number.

12221210020122 is an abundant number, since it is smaller than the sum of its proper divisors (15819931707750).

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

12221210020122 is a wasteful number, since it uses less digits than its factorization.

12221210020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051523 (or 6051520 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221210020122 its reverse (22102001212221), we get a palindrome (34323211232343).

The spelling of 12221210020122 in words is "twelve trillion, two hundred twenty-one billion, two hundred ten million, twenty thousand, one hundred twenty-two".