10700100221 has 2 divisors, whose sum is σ = 10700100222. Its totient is φ = 10700100220.

The previous prime is 10700100163. The next prime is 10700100223. The reversal of 10700100221 is 12200100701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7688834596 + 3011265625 = 87686^2 + 54875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10700100221 is a prime.

It is a super-2 number, since 2×10700100221² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 10700100223, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10700100196 and 10700100205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10700100223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5350050110 + 5350050111.

It is an arithmetic number, because the mean of its divisors is an integer number (5350050111).

Almost surely, 2^10700100221 is an apocalyptic number.

It is an amenable number.

10700100221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10700100221 is an equidigital number, since it uses as much as digits as its factorization.

10700100221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 10700100221 its reverse (12200100701), we get a palindrome (22900200922).

The spelling of 10700100221 in words is "ten billion, seven hundred million, one hundred thousand, two hundred twenty-one".