122011220012021 has 2 divisors, whose sum is σ = 122011220012022. Its totient is φ = 122011220012020.

The previous prime is 122011220011987. The next prime is 122011220012131. The reversal of 122011220012021 is 120210022110221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83530661319121 + 38480558692900 = 9139511^2 + 6203270^2 .

It is a cyclic number.

It is not a de Polignac number, because 122011220012021 - 2³⁴ = 121994040142837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122011220312021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61005610006010 + 61005610006011.

It is an arithmetic number, because the mean of its divisors is an integer number (61005610006011).

Almost surely, 2^{122011220012021} is an apocalyptic number.

It is an amenable number.

122011220012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122011220012021 is an equidigital number, since it uses as much as digits as its factorization.

122011220012021 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 122011220012021 its reverse (120210022110221), we get a palindrome (242221242122242).

The spelling of 122011220012021 in words is "one hundred twenty-two trillion, eleven billion, two hundred twenty million, twelve thousand, twenty-one".