1202221222111 has 16 divisors (see below), whose sum is σ = 1482361990144. Its totient is φ = 949469006304.

The previous prime is 1202221221947. The next prime is 1202221222151. The reversal of 1202221222111 is 1112221222021.

It is not a de Polignac number, because 1202221222111 - 2¹¹ = 1202221220063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202221222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12026295 + ... + 12125848.

It is an arithmetic number, because the mean of its divisors is an integer number (92647624384).

Almost surely, 2^{1202221222111} is an apocalyptic number.

1202221222111 is a deficient number, since it is larger than the sum of its proper divisors (280140768033).

1202221222111 is a wasteful number, since it uses less digits than its factorization.

1202221222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24152710.

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

Adding to 1202221222111 its reverse (1112221222021), we get a palindrome (2314442444132).

The spelling of 1202221222111 in words is "one trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred eleven".