110002111221 has 24 divisors (see below), whose sum is σ = 156007025824. Its totient is φ = 68892223680.

The previous prime is 110002111187. The next prime is 110002111223. The reversal of 110002111221 is 122111200011.

It is not a de Polignac number, because 110002111221 - 2²³ = 109993722613 is a prime.

It is a super-2 number, since 2×110002111221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110002111197 and 110002111206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110002111223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495835 + ... + 682536.

Almost surely, 2^110002111221 is an apocalyptic number.

It is an amenable number.

110002111221 is a deficient number, since it is larger than the sum of its proper divisors (46004914603).

110002111221 is a wasteful number, since it uses less digits than its factorization.

110002111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178469 (or 1178440 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 110002111221 its reverse (122111200011), we get a palindrome (232113311232).

The spelling of 110002111221 in words is "one hundred ten billion, two million, one hundred eleven thousand, two hundred twenty-one".