10199021773 has 2 divisors, whose sum is σ = 10199021774. Its totient is φ = 10199021772.

The previous prime is 10199021753. The next prime is 10199021783. The reversal of 10199021773 is 37712099101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8392941769 + 1806080004 = 91613^2 + 42498^2 .

It is an emirp because it is prime and its reverse (37712099101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10199021773 - 2¹⁷ = 10198890701 is a prime.

It is a super-2 number, since 2×10199021773² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10199021753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5099510886 + 5099510887.

It is an arithmetic number, because the mean of its divisors is an integer number (5099510887).

Almost surely, 2^10199021773 is an apocalyptic number.

It is an amenable number.

10199021773 is a deficient number, since it is larger than the sum of its proper divisors (1).

10199021773 is an equidigital number, since it uses as much as digits as its factorization.

10199021773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 40.

The spelling of 10199021773 in words is "ten billion, one hundred ninety-nine million, twenty-one thousand, seven hundred seventy-three".