121011122110051 has 2 divisors, whose sum is σ = 121011122110052. Its totient is φ = 121011122110050.

The previous prime is 121011122110049. The next prime is 121011122110163. The reversal of 121011122110051 is 150011221110121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121011122110051 - 2¹ = 121011122110049 is a prime.

Together with 121011122110049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (121011122110001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505561055025 + 60505561055026.

It is an arithmetic number, because the mean of its divisors is an integer number (60505561055026).

Almost surely, 2^{121011122110051} is an apocalyptic number.

121011122110051 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011122110051 is an equidigital number, since it uses as much as digits as its factorization.

121011122110051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 19.

Adding to 121011122110051 its reverse (150011221110121), we get a palindrome (271022343220172).

The spelling of 121011122110051 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-two million, one hundred ten thousand, fifty-one".