1222122001111 has 32 divisors (see below), whose sum is σ = 1349649100800. Its totient is φ = 1097423964000.

The previous prime is 1222122001103. The next prime is 1222122001147. The reversal of 1222122001111 is 1111002212221.

It is a cyclic number.

It is not a de Polignac number, because 1222122001111 - 2³ = 1222122001103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222122008111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311843410 + ... + 311847328.

It is an arithmetic number, because the mean of its divisors is an integer number (42176534400).

Almost surely, 2^{1222122001111} is an apocalyptic number.

1222122001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222122001111 is a deficient number, since it is larger than the sum of its proper divisors (127527099689).

1222122001111 is a wasteful number, since it uses less digits than its factorization.

1222122001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1222122001111 its reverse (1111002212221), we get a palindrome (2333124213332).

The spelling of 1222122001111 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, one thousand, one hundred eleven".