100122332455221 has 4 divisors (see below), whose sum is σ = 133496443273632. Its totient is φ = 66748221636812.

The previous prime is 100122332455217. The next prime is 100122332455283. The reversal of 100122332455221 is 122554233221001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100122332455221 - 2² = 100122332455217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100122332455291) 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 3 ways as a sum of consecutive naturals, for example, 16687055409201 + ... + 16687055409206.

It is an arithmetic number, because the mean of its divisors is an integer number (33374110818408).

Almost surely, 2^{100122332455221} is an apocalyptic number.

It is an amenable number.

100122332455221 is a deficient number, since it is larger than the sum of its proper divisors (33374110818411).

100122332455221 is an equidigital number, since it uses as much as digits as its factorization.

100122332455221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33374110818410.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 100122332455221 its reverse (122554233221001), we get a palindrome (222676565676222).

The spelling of 100122332455221 in words is "one hundred trillion, one hundred twenty-two billion, three hundred thirty-two million, four hundred fifty-five thousand, two hundred twenty-one".