10122020011021 has 2 divisors, whose sum is σ = 10122020011022. Its totient is φ = 10122020011020.

The previous prime is 10122020011003. The next prime is 10122020011031. The reversal of 10122020011021 is 12011002022101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6849578808900 + 3272441202121 = 2617170^2 + 1808989^2 .

It is a cyclic number.

It is not a de Polignac number, because 10122020011021 - 2¹⁵ = 10122019978253 is a prime.

It is a super-2 number, since 2×10122020011021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10122020010992 and 10122020011010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10122020011001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061010005510 + 5061010005511.

It is an arithmetic number, because the mean of its divisors is an integer number (5061010005511).

Almost surely, 2^{10122020011021} is an apocalyptic number.

It is an amenable number.

10122020011021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10122020011021 is an equidigital number, since it uses as much as digits as its factorization.

10122020011021 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 13.

Adding to 10122020011021 its reverse (12011002022101), we get a palindrome (22133022033122).

The spelling of 10122020011021 in words is "ten trillion, one hundred twenty-two billion, twenty million, eleven thousand, twenty-one".