12202022001221 has 64 divisors (see below), whose sum is σ = 13610768855040. Its totient is φ = 10869487200000.

The previous prime is 12202022001209. The next prime is 12202022001251. The reversal of 12202022001221 is 12210022020221.

It is a happy number.

It is not a de Polignac number, because 12202022001221 - 2¹⁴ = 12202021984837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12202022001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202022001251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10865557766 + ... + 10865558888.

It is an arithmetic number, because the mean of its divisors is an integer number (212668263360).

Almost surely, 2^{12202022001221} is an apocalyptic number.

It is an amenable number.

12202022001221 is a deficient number, since it is larger than the sum of its proper divisors (1408746853819).

12202022001221 is a wasteful number, since it uses less digits than its factorization.

12202022001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12202022001221 its reverse (12210022020221), we get a palindrome (24412044021442).

The spelling of 12202022001221 in words is "twelve trillion, two hundred two billion, twenty-two million, one thousand, two hundred twenty-one".