122002011202021 has 2 divisors, whose sum is σ = 122002011202022. Its totient is φ = 122002011202020.

The previous prime is 122002011202007. The next prime is 122002011202031. The reversal of 122002011202021 is 120202110200221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98471605037796 + 23530406164225 = 9923286^2 + 4850815^2 .

It is a cyclic number.

It is not a de Polignac number, because 122002011202021 - 2⁹ = 122002011201509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122002011201986 and 122002011202004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002011202031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001005601010 + 61001005601011.

It is an arithmetic number, because the mean of its divisors is an integer number (61001005601011).

Almost surely, 2^{122002011202021} is an apocalyptic number.

It is an amenable number.

122002011202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002011202021 is an equidigital number, since it uses as much as digits as its factorization.

122002011202021 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 16.

Adding to 122002011202021 its reverse (120202110200221), we get a palindrome (242204121402242).

The spelling of 122002011202021 in words is "one hundred twenty-two trillion, two billion, eleven million, two hundred two thousand, twenty-one".