1222221022113 has 64 divisors (see below), whose sum is σ = 2017057996800. Its totient is φ = 641038890240.

The previous prime is 1222221022091. The next prime is 1222221022129. The reversal of 1222221022113 is 3112201222221.

It is not a de Polignac number, because 1222221022113 - 2³⁰ = 1221147280289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1222221022113.

It is not an unprimeable number, because it can be changed into a prime (1222221022193) 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, 194959543 + ... + 194965811.

It is an arithmetic number, because the mean of its divisors is an integer number (31516531200).

Almost surely, 2^{1222221022113} is an apocalyptic number.

1222221022113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1222221022113 is a deficient number, since it is larger than the sum of its proper divisors (794836974687).

1222221022113 is a wasteful number, since it uses less digits than its factorization.

1222221022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1222221022113 its reverse (3112201222221), we get a palindrome (4334422244334).

The spelling of 1222221022113 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, twenty-two thousand, one hundred thirteen".