100022111221 has 8 divisors (see below), whose sum is σ = 100317403584. Its totient is φ = 99726887040.

The previous prime is 100022111219. The next prime is 100022111237. The reversal of 100022111221 is 122111220001.

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 100022111221 - 2¹ = 100022111219 is a prime.

It is a super-2 number, since 2×100022111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022111621) 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, 5556766 + ... + 5574736.

It is an arithmetic number, because the mean of its divisors is an integer number (12539675448).

Almost surely, 2^100022111221 is an apocalyptic number.

It is an amenable number.

100022111221 is a deficient number, since it is larger than the sum of its proper divisors (295292363).

100022111221 is a wasteful number, since it uses less digits than its factorization.

100022111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100022111221 its reverse (122111220001), we get a palindrome (222133331222).

The spelling of 100022111221 in words is "one hundred billion, twenty-two million, one hundred eleven thousand, two hundred twenty-one".