121011020222021 has 2 divisors, whose sum is σ = 121011020222022. Its totient is φ = 121011020222020.

The previous prime is 121011020222003. The next prime is 121011020222039. The reversal of 121011020222021 is 120222020110121.

It is a balanced prime because it is at equal distance from previous prime (121011020222003) and next prime (121011020222039).

It can be written as a sum of positive squares in only one way, i.e., 72457787181796 + 48553233040225 = 8512214^2 + 6968015^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121011020222021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011020225021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505510111010 + 60505510111011.

It is an arithmetic number, because the mean of its divisors is an integer number (60505510111011).

Almost surely, 2^{121011020222021} is an apocalyptic number.

It is an amenable number.

121011020222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011020222021 is an equidigital number, since it uses as much as digits as its factorization.

121011020222021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121011020222021 its reverse (120222020110121), we get a palindrome (241233040332142).

The spelling of 121011020222021 in words is "one hundred twenty-one trillion, eleven billion, twenty million, two hundred twenty-two thousand, twenty-one".