12201001221122 has 16 divisors (see below), whose sum is σ = 20916127525632. Its totient is φ = 5228969165280.

The previous prime is 12201001221113. The next prime is 12201001221137. The reversal of 12201001221122 is 22112210010221.

It is a self number, because there is not a number n which added to its sum of digits gives 12201001221122.

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, 112778 + ... + 4941125.

It is an arithmetic number, because the mean of its divisors is an integer number (1307257970352).

Almost surely, 2^{12201001221122} is an apocalyptic number.

12201001221122 is a deficient number, since it is larger than the sum of its proper divisors (8715126304510).

12201001221122 is a wasteful number, since it uses less digits than its factorization.

12201001221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226353.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12201001221122 its reverse (22112210010221), we get a palindrome (34313211231343).

The spelling of 12201001221122 in words is "twelve trillion, two hundred one billion, one million, two hundred twenty-one thousand, one hundred twenty-two".