100022112022221 has 12 divisors (see below), whose sum is σ = 150757965946848. Its totient is φ = 63782216361864.

The previous prime is 100022112022123. The next prime is 100022112022253. The reversal of 100022112022221 is 122220211220001.

It is a happy number.

100022112022221 is a `hidden beast` number, since 100 + 0 + 221 + 120 + 2 + 2 + 221 = 666.

It is not a de Polignac number, because 100022112022221 - 2⁷ = 100022112022093 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100022112022194 and 100022112022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022112022321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241599304195 + ... + 241599304608.

It is an arithmetic number, because the mean of its divisors is an integer number (12563163828904).

Almost surely, 2^{100022112022221} is an apocalyptic number.

It is an amenable number.

100022112022221 is a deficient number, since it is larger than the sum of its proper divisors (50735853924627).

100022112022221 is a wasteful number, since it uses less digits than its factorization.

100022112022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483198608832 (or 483198608829 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100022112022221 its reverse (122220211220001), we get a palindrome (222242323242222).

The spelling of 100022112022221 in words is "one hundred trillion, twenty-two billion, one hundred twelve million, twenty-two thousand, two hundred twenty-one".