100012120202221 has 8 divisors (see below), whose sum is σ = 100047991680000. Its totient is φ = 99976253997840.

The previous prime is 100012120202213. The next prime is 100012120202227. The reversal of 100012120202221 is 122202021210001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100012120202221 - 2³ = 100012120202213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012120202195 and 100012120202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012120202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36816820 + ... + 39439858.

It is an arithmetic number, because the mean of its divisors is an integer number (12505998960000).

Almost surely, 2^{100012120202221} is an apocalyptic number.

It is an amenable number.

100012120202221 is a deficient number, since it is larger than the sum of its proper divisors (35871477779).

100012120202221 is an equidigital number, since it uses as much as digits as its factorization.

100012120202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636699.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100012120202221 its reverse (122202021210001), we get a palindrome (222214141412222).

The spelling of 100012120202221 in words is "one hundred trillion, twelve billion, one hundred twenty million, two hundred two thousand, two hundred twenty-one".