1222201001111 has 16 divisors (see below), whose sum is σ = 1252812607488. Its totient is φ = 1192075428000.

The previous prime is 1222201001107. The next prime is 1222201001117. The reversal of 1222201001111 is 1111001022221.

It is a cyclic number.

It is not a de Polignac number, because 1222201001111 - 2² = 1222201001107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222201001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679420 + ... + 2294526.

It is an arithmetic number, because the mean of its divisors is an integer number (78300787968).

Almost surely, 2^{1222201001111} is an apocalyptic number.

1222201001111 is a deficient number, since it is larger than the sum of its proper divisors (30611606377).

1222201001111 is a wasteful number, since it uses less digits than its factorization.

1222201001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615502.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1222201001111 its reverse (1111001022221), we get a palindrome (2333202023332).

The spelling of 1222201001111 in words is "one trillion, two hundred twenty-two billion, two hundred one million, one thousand, one hundred eleven".