122010212221111 has 2 divisors, whose sum is σ = 122010212221112. Its totient is φ = 122010212221110.

The previous prime is 122010212221021. The next prime is 122010212221129. The reversal of 122010212221111 is 111122212010221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122010212221111 - 2¹⁹ = 122010211696823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122010212221141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005106110555 + 61005106110556.

It is an arithmetic number, because the mean of its divisors is an integer number (61005106110556).

Almost surely, 2^{122010212221111} is an apocalyptic number.

122010212221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122010212221111 is an equidigital number, since it uses as much as digits as its factorization.

122010212221111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122010212221111 its reverse (111122212010221), we get a palindrome (233132424231332).

The spelling of 122010212221111 in words is "one hundred twenty-two trillion, ten billion, two hundred twelve million, two hundred twenty-one thousand, one hundred eleven".