121201120122011 has 2 divisors, whose sum is σ = 121201120122012. Its totient is φ = 121201120122010.

The previous prime is 121201120121929. The next prime is 121201120122053. The reversal of 121201120122011 is 110221021102121.

It is a strong prime.

It is an emirp because it is prime and its reverse (110221021102121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121201120122011 - 2²² = 121201115927707 is a prime.

It is not a weakly prime, because it can be changed into another prime (121201120124011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600560061005 + 60600560061006.

It is an arithmetic number, because the mean of its divisors is an integer number (60600560061006).

Almost surely, 2^{121201120122011} is an apocalyptic number.

121201120122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201120122011 is an equidigital number, since it uses as much as digits as its factorization.

121201120122011 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 121201120122011 its reverse (110221021102121), we get a palindrome (231422141224132).

The spelling of 121201120122011 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty million, one hundred twenty-two thousand, eleven".