1222212001111 has 2 divisors, whose sum is σ = 1222212001112. Its totient is φ = 1222212001110.

The previous prime is 1222212001103. The next prime is 1222212001141. The reversal of 1222212001111 is 1111002122221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222212001111 - 2³ = 1222212001103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222212001141) 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 as a sum of consecutive naturals, namely, 611106000555 + 611106000556.

It is an arithmetic number, because the mean of its divisors is an integer number (611106000556).

Almost surely, 2^{1222212001111} is an apocalyptic number.

1222212001111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222212001111 is an equidigital number, since it uses as much as digits as its factorization.

1222212001111 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1222212001111 its reverse (1111002122221), we get a palindrome (2333214123332).

The spelling of 1222212001111 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, one thousand, one hundred eleven".