100000012120221 has 8 divisors (see below), whose sum is σ = 133804492072480. Its totient is φ = 66431103457392.

The previous prime is 100000012120213. The next prime is 100000012120277. The reversal of 100000012120221 is 122021210000001.

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

It is not a de Polignac number, because 100000012120221 - 2³ = 100000012120213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100000012120197 and 100000012120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000012120201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58892821366 + ... + 58892823063.

It is an arithmetic number, because the mean of its divisors is an integer number (16725561509060).

Almost surely, 2^{100000012120221} is an apocalyptic number.

It is an amenable number.

100000012120221 is a deficient number, since it is larger than the sum of its proper divisors (33804479952259).

100000012120221 is a wasteful number, since it uses less digits than its factorization.

100000012120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117785644715.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100000012120221 its reverse (122021210000001), we get a palindrome (222021222120222).

The spelling of 100000012120221 in words is "one hundred trillion, twelve million, one hundred twenty thousand, two hundred twenty-one".