21010012022071 has 2 divisors, whose sum is σ = 21010012022072. Its totient is φ = 21010012022070.

The previous prime is 21010012022053. The next prime is 21010012022089. The reversal of 21010012022071 is 17022021001012.

It is a balanced prime because it is at equal distance from previous prime (21010012022053) and next prime (21010012022089).

It is a cyclic number.

It is not a de Polignac number, because 21010012022071 - 2¹⁵ = 21010011989303 is a prime.

It is a super-2 number, since 2×21010012022071² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010012022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505006011035 + 10505006011036.

It is an arithmetic number, because the mean of its divisors is an integer number (10505006011036).

Almost surely, 2^{21010012022071} is an apocalyptic number.

21010012022071 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010012022071 is an equidigital number, since it uses as much as digits as its factorization.

21010012022071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 21010012022071 its reverse (17022021001012), we get a palindrome (38032033023083).

The spelling of 21010012022071 in words is "twenty-one trillion, ten billion, twelve million, twenty-two thousand, seventy-one".