122101012021 has 2 divisors, whose sum is σ = 122101012022. Its totient is φ = 122101012020.

The previous prime is 122101011997. The next prime is 122101012027. The reversal of 122101012021 is 120210101221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104348380900 + 17752631121 = 323030^2 + 133239^2 .

It is a cyclic number.

It is not a de Polignac number, because 122101012021 - 2⁹ = 122101011509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122101011992 and 122101012010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122101012027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050506010 + 61050506011.

It is an arithmetic number, because the mean of its divisors is an integer number (61050506011).

Almost surely, 2^122101012021 is an apocalyptic number.

It is an amenable number.

122101012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122101012021 is an equidigital number, since it uses as much as digits as its factorization.

122101012021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122101012021 its reverse (120210101221), we get a palindrome (242311113242).

The spelling of 122101012021 in words is "one hundred twenty-two billion, one hundred one million, twelve thousand, twenty-one".