100022110121221 has 8 divisors (see below), whose sum is σ = 100193017184064. Its totient is φ = 99851204799840.

The previous prime is 100022110121209. The next prime is 100022110121267. The reversal of 100022110121221 is 122121011220001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100022110121221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100022110121195 and 100022110121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022110121201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174418441 + ... + 174990961.

It is an arithmetic number, because the mean of its divisors is an integer number (12524127148008).

Almost surely, 2^{100022110121221} is an apocalyptic number.

It is an amenable number.

100022110121221 is a deficient number, since it is larger than the sum of its proper divisors (170907062843).

100022110121221 is an equidigital number, since it uses as much as digits as its factorization.

100022110121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870731.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100022110121221 its reverse (122121011220001), we get a palindrome (222143121341222).

The spelling of 100022110121221 in words is "one hundred trillion, twenty-two billion, one hundred ten million, one hundred twenty-one thousand, two hundred twenty-one".