1222012344221 has 32 divisors (see below), whose sum is σ = 1278190886400. Its totient is φ = 1167544768000.

The previous prime is 1222012344197. The next prime is 1222012344227. The reversal of 1222012344221 is 1224432102221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1222012344221 - 2¹⁰ = 1222012343197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222012344227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96894206 + ... + 96906816.

It is an arithmetic number, because the mean of its divisors is an integer number (39943465200).

Almost surely, 2^{1222012344221} is an apocalyptic number.

It is an amenable number.

1222012344221 is a deficient number, since it is larger than the sum of its proper divisors (56178542179).

1222012344221 is a wasteful number, since it uses less digits than its factorization.

1222012344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13045.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1222012344221 its reverse (1224432102221), we get a palindrome (2446444446442).

The spelling of 1222012344221 in words is "one trillion, two hundred twenty-two billion, twelve million, three hundred forty-four thousand, two hundred twenty-one".