100221212319 has 4 divisors (see below), whose sum is σ = 133628283096. Its totient is φ = 66814141544.

The previous prime is 100221212297. The next prime is 100221212381. The reversal of 100221212319 is 913212122001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 913212122001 = 3 ⋅304404040667.

It is a cyclic number.

It is not a de Polignac number, because 100221212319 - 2¹⁶ = 100221146783 is a prime.

It is a super-2 number, since 2×100221212319² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100221212419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16703535384 + ... + 16703535389.

It is an arithmetic number, because the mean of its divisors is an integer number (33407070774).

Almost surely, 2^100221212319 is an apocalyptic number.

100221212319 is a deficient number, since it is larger than the sum of its proper divisors (33407070777).

100221212319 is an equidigital number, since it uses as much as digits as its factorization.

100221212319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33407070776.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 100221212319 in words is "one hundred billion, two hundred twenty-one million, two hundred twelve thousand, three hundred nineteen".