2111221012222 has 16 divisors (see below), whose sum is σ = 3620119075200. Its totient is φ = 904588241688.

The previous prime is 2111221012067. The next prime is 2111221012231. The reversal of 2111221012222 is 2222101221112.

It is a self number, because there is not a number n which added to its sum of digits gives 2111221012222.

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, 18337528 + ... + 18452299.

It is an arithmetic number, because the mean of its divisors is an integer number (226257442200).

Almost surely, 2^{2111221012222} is an apocalyptic number.

2111221012222 is a deficient number, since it is larger than the sum of its proper divisors (1508898062978).

2111221012222 is a wasteful number, since it uses less digits than its factorization.

2111221012222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36793935.

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

Adding to 2111221012222 its reverse (2222101221112), we get a palindrome (4333322233334).

The spelling of 2111221012222 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, twelve thousand, two hundred twenty-two".