1222111221202 has 32 divisors (see below), whose sum is σ = 1850036348160. Its totient is φ = 605458236240.

The previous prime is 1222111221197. The next prime is 1222111221209. The reversal of 1222111221202 is 2021221112221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222111221202.

It is not an unprimeable number, because it can be changed into a prime (1222111221209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159895593 + ... + 159903235.

It is an arithmetic number, because the mean of its divisors is an integer number (57813635880).

Almost surely, 2^{1222111221202} is an apocalyptic number.

1222111221202 is a deficient number, since it is larger than the sum of its proper divisors (627925126958).

1222111221202 is a wasteful number, since it uses less digits than its factorization.

1222111221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9238.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1222111221202 its reverse (2021221112221), we get a palindrome (3243332333423).

The spelling of 1222111221202 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-one thousand, two hundred two".