2111221321222 has 16 divisors (see below), whose sum is σ = 3414846420720. Its totient is φ = 973149275232.

The previous prime is 2111221321169. The next prime is 2111221321273. The reversal of 2111221321222 is 2221231221112.

It is a junction number, because it is equal to n+sod(n) for n = 2111221321193 and 2111221321202.

It is a congruent number.

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, 52503072 + ... + 52543267.

It is an arithmetic number, because the mean of its divisors is an integer number (213427901295).

Almost surely, 2^{2111221321222} is an apocalyptic number.

2111221321222 is a deficient number, since it is larger than the sum of its proper divisors (1303625099498).

2111221321222 is a wasteful number, since it uses less digits than its factorization.

2111221321222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105047127.

The product of its digits is 384, while the sum is 22.

Adding to 2111221321222 its reverse (2221231221112), we get a palindrome (4332452542334).

The spelling of 2111221321222 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, three hundred twenty-one thousand, two hundred twenty-two".