121101202220051 has 2 divisors, whose sum is σ = 121101202220052. Its totient is φ = 121101202220050.

The previous prime is 121101202219999. The next prime is 121101202220203. The reversal of 121101202220051 is 150022202101121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121101202220051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121101202220351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550601110025 + 60550601110026.

It is an arithmetic number, because the mean of its divisors is an integer number (60550601110026).

Almost surely, 2^{121101202220051} is an apocalyptic number.

121101202220051 is a deficient number, since it is larger than the sum of its proper divisors (1).

121101202220051 is an equidigital number, since it uses as much as digits as its factorization.

121101202220051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 121101202220051 its reverse (150022202101121), we get a palindrome (271123404321172).

The spelling of 121101202220051 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred two million, two hundred twenty thousand, fifty-one".