10212567481 has 2 divisors, whose sum is σ = 10212567482. Its totient is φ = 10212567480.

The previous prime is 10212567457. The next prime is 10212567493. The reversal of 10212567481 is 18476521201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7063562025 + 3149005456 = 84045^2 + 56116^2 .

It is an emirp because it is prime and its reverse (18476521201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10212567481 - 2²¹ = 10210470329 is a prime.

It is a super-2 number, since 2×10212567481² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10212567481.

It is not a weakly prime, because it can be changed into another prime (10212567581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106283740 + 5106283741.

It is an arithmetic number, because the mean of its divisors is an integer number (5106283741).

Almost surely, 2^10212567481 is an apocalyptic number.

It is an amenable number.

10212567481 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212567481 is an equidigital number, since it uses as much as digits as its factorization.

10212567481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 10212567481 in words is "ten billion, two hundred twelve million, five hundred sixty-seven thousand, four hundred eighty-one".