1222002021111 has 32 divisors (see below), whose sum is σ = 1726874795520. Its totient is φ = 767078868864.

The previous prime is 1222002021101. The next prime is 1222002021113. The reversal of 1222002021111 is 1111202002221.

It is not a de Polignac number, because 1222002021111 - 2²⁵ = 1221968466679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222002021113) 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 31 ways as a sum of consecutive naturals, for example, 1201225 + ... + 1971533.

It is an arithmetic number, because the mean of its divisors is an integer number (53964837360).

Almost surely, 2^{1222002021111} is an apocalyptic number.

1222002021111 is a deficient number, since it is larger than the sum of its proper divisors (504872774409).

1222002021111 is a wasteful number, since it uses less digits than its factorization.

1222002021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770695.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222002021111 its reverse (1111202002221), we get a palindrome (2333204023332).

The spelling of 1222002021111 in words is "one trillion, two hundred twenty-two billion, two million, twenty-one thousand, one hundred eleven".