122120201012111 has 2 divisors, whose sum is σ = 122120201012112. Its totient is φ = 122120201012110.

The previous prime is 122120201012053. The next prime is 122120201012129. The reversal of 122120201012111 is 111210102021221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122120201012111 - 2¹⁰ = 122120201011087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120201012111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122120209012111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060100506055 + 61060100506056.

It is an arithmetic number, because the mean of its divisors is an integer number (61060100506056).

Almost surely, 2^{122120201012111} is an apocalyptic number.

122120201012111 is a deficient number, since it is larger than the sum of its proper divisors (1).

122120201012111 is an equidigital number, since it uses as much as digits as its factorization.

122120201012111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 122120201012111 its reverse (111210102021221), we get a palindrome (233330303033332).

The spelling of 122120201012111 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred one million, twelve thousand, one hundred eleven".