121014440111 has 2 divisors, whose sum is σ = 121014440112. Its totient is φ = 121014440110.

The previous prime is 121014440101. The next prime is 121014440117. The reversal of 121014440111 is 111044410121.

It is a strong prime.

It is an emirp because it is prime and its reverse (111044410121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121014440111 - 2⁶ = 121014440047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121014440117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60507220055 + 60507220056.

It is an arithmetic number, because the mean of its divisors is an integer number (60507220056).

Almost surely, 2^121014440111 is an apocalyptic number.

121014440111 is a deficient number, since it is larger than the sum of its proper divisors (1).

121014440111 is an equidigital number, since it uses as much as digits as its factorization.

121014440111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121014440111 its reverse (111044410121), we get a palindrome (232058850232).

The spelling of 121014440111 in words is "one hundred twenty-one billion, fourteen million, four hundred forty thousand, one hundred eleven".