10851221371 has 2 divisors, whose sum is σ = 10851221372. Its totient is φ = 10851221370.

The previous prime is 10851221351. The next prime is 10851221377. The reversal of 10851221371 is 17312215801.

It is a strong prime.

It is an emirp because it is prime and its reverse (17312215801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10851221371 - 2⁷ = 10851221243 is a prime.

It is not a weakly prime, because it can be changed into another prime (10851221377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5425610685 + 5425610686.

It is an arithmetic number, because the mean of its divisors is an integer number (5425610686).

Almost surely, 2^10851221371 is an apocalyptic number.

10851221371 is a deficient number, since it is larger than the sum of its proper divisors (1).

10851221371 is an equidigital number, since it uses as much as digits as its factorization.

10851221371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 31.

The spelling of 10851221371 in words is "ten billion, eight hundred fifty-one million, two hundred twenty-one thousand, three hundred seventy-one".