100012012210221 has 32 divisors (see below), whose sum is σ = 140295679751808. Its totient is φ = 63289509212160.

The previous prime is 100012012210171. The next prime is 100012012210261. The reversal of 100012012210221 is 122012210210001.

It is not a de Polignac number, because 100012012210221 - 2¹⁵ = 100012012177453 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 100012012210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012012210261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510055426 + ... + 510251468.

It is an arithmetic number, because the mean of its divisors is an integer number (4384239992244).

Almost surely, 2^{100012012210221} is an apocalyptic number.

It is an amenable number.

100012012210221 is a deficient number, since it is larger than the sum of its proper divisors (40283667541587).

100012012210221 is a wasteful number, since it uses less digits than its factorization.

100012012210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308221.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100012012210221 its reverse (122012210210001), we get a palindrome (222024222420222).

The spelling of 100012012210221 in words is "one hundred trillion, twelve billion, twelve million, two hundred ten thousand, two hundred twenty-one".