121011122022211 has 2 divisors, whose sum is σ = 121011122022212. Its totient is φ = 121011122022210.

The previous prime is 121011122022187. The next prime is 121011122022257. The reversal of 121011122022211 is 112220221110121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121011122022211 - 2³¹ = 121008974538563 is a prime.

It is not a weakly prime, because it can be changed into another prime (121011122022911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505561011105 + 60505561011106.

It is an arithmetic number, because the mean of its divisors is an integer number (60505561011106).

Almost surely, 2^{121011122022211} is an apocalyptic number.

121011122022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011122022211 is an equidigital number, since it uses as much as digits as its factorization.

121011122022211 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 121011122022211 its reverse (112220221110121), we get a palindrome (233231343132332).

The spelling of 121011122022211 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-two million, twenty-two thousand, two hundred eleven".