100221213331 has 2 divisors, whose sum is σ = 100221213332. Its totient is φ = 100221213330.

The previous prime is 100221213307. The next prime is 100221213353. The reversal of 100221213331 is 133312122001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100221213331 - 2¹¹ = 100221211283 is a prime.

It is a super-2 number, since 2×100221213331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100221213299 and 100221213308.

It is not a weakly prime, because it can be changed into another prime (100221213031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50110606665 + 50110606666.

It is an arithmetic number, because the mean of its divisors is an integer number (50110606666).

Almost surely, 2^100221213331 is an apocalyptic number.

100221213331 is a deficient number, since it is larger than the sum of its proper divisors (1).

100221213331 is an equidigital number, since it uses as much as digits as its factorization.

100221213331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 100221213331 its reverse (133312122001), we get a palindrome (233533335332).

The spelling of 100221213331 in words is "one hundred billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-one".