1202020121111 has 2 divisors, whose sum is σ = 1202020121112. Its totient is φ = 1202020121110.

The previous prime is 1202020121083. The next prime is 1202020121129. The reversal of 1202020121111 is 1111210202021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202020121111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202020121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601010060555 + 601010060556.

It is an arithmetic number, because the mean of its divisors is an integer number (601010060556).

Almost surely, 2^{1202020121111} is an apocalyptic number.

1202020121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202020121111 is an equidigital number, since it uses as much as digits as its factorization.

1202020121111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1202020121111 its reverse (1111210202021), we get a palindrome (2313230323132).

The spelling of 1202020121111 in words is "one trillion, two hundred two billion, twenty million, one hundred twenty-one thousand, one hundred eleven".