10021011212021 has 2 divisors, whose sum is σ = 10021011212022. Its totient is φ = 10021011212020.

The previous prime is 10021011211993. The next prime is 10021011212027. The reversal of 10021011212021 is 12021211012001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9703935232996 + 317075979025 = 3115114^2 + 563095^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021011212021 - 2⁶ = 10021011211957 is a prime.

It is a super-2 number, since 2×10021011212021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10021011211987 and 10021011212005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021011212027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010505606010 + 5010505606011.

It is an arithmetic number, because the mean of its divisors is an integer number (5010505606011).

Almost surely, 2^{10021011212021} is an apocalyptic number.

It is an amenable number.

10021011212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021011212021 is an equidigital number, since it uses as much as digits as its factorization.

10021011212021 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 14.

Adding to 10021011212021 its reverse (12021211012001), we get a palindrome (22042222224022).

It can be divided in two parts, 1002101 and 1212021, that added together give a palindrome (2214122).

The spelling of 10021011212021 in words is "ten trillion, twenty-one billion, eleven million, two hundred twelve thousand, twenty-one".