100221212019 has 8 divisors (see below), whose sum is σ = 134299782400. Its totient is φ = 66478391496.

The previous prime is 100221212017. The next prime is 100221212041. The reversal of 100221212019 is 910212122001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100221212019 - 2¹ = 100221212017 is a prime.

It is a super-2 number, since 2×100221212019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100221211986 and 100221212004.

It is not an unprimeable number, because it can be changed into a prime (100221212017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83936767 + ... + 83937960.

It is an arithmetic number, because the mean of its divisors is an integer number (16787472800).

Almost surely, 2^100221212019 is an apocalyptic number.

100221212019 is a deficient number, since it is larger than the sum of its proper divisors (34078570381).

100221212019 is a wasteful number, since it uses less digits than its factorization.

100221212019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167874929.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 100221212019 in words is "one hundred billion, two hundred twenty-one million, two hundred twelve thousand, nineteen".