100120211222221 has 8 divisors (see below), whose sum is σ = 101327076625824. Its totient is φ = 98913360052080.

The previous prime is 100120211222219. The next prime is 100120211222237. The reversal of 100120211222221 is 122222112021001.

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 100120211222221 - 2¹ = 100120211222219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120211222261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10949050 + ... + 17891956.

It is an arithmetic number, because the mean of its divisors is an integer number (12665884578228).

Almost surely, 2^{100120211222221} is an apocalyptic number.

It is an amenable number.

100120211222221 is a deficient number, since it is larger than the sum of its proper divisors (1206865403603).

100120211222221 is an equidigital number, since it uses as much as digits as its factorization.

100120211222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7116731.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 100120211222221 its reverse (122222112021001), we get a palindrome (222342323243222).

The spelling of 100120211222221 in words is "one hundred trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twenty-one".