1222212011101 has 2 divisors, whose sum is σ = 1222212011102. Its totient is φ = 1222212011100.

The previous prime is 1222212011089. The next prime is 1222212011113. The reversal of 1222212011101 is 1011102122221.

It is a balanced prime because it is at equal distance from previous prime (1222212011089) and next prime (1222212011113).

It can be written as a sum of positive squares in only one way, i.e., 1107758355001 + 114453656100 = 1052501^2 + 338310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222212011101 - 2⁹ = 1222212010589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222212011191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611106005550 + 611106005551.

It is an arithmetic number, because the mean of its divisors is an integer number (611106005551).

Almost surely, 2^{1222212011101} is an apocalyptic number.

It is an amenable number.

1222212011101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222212011101 is an equidigital number, since it uses as much as digits as its factorization.

1222212011101 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 1222212011101 its reverse (1011102122221), we get a palindrome (2233314133322).

It can be divided in two parts, 12222120 and 11101, that added together give a palindrome (12233221).

The spelling of 1222212011101 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, eleven thousand, one hundred one".