110021222121 has 16 divisors (see below), whose sum is σ = 147822796800. Its totient is φ = 72785277968.

The previous prime is 110021222099. The next prime is 110021222161. The reversal of 110021222121 is 121222120011.

It is a cyclic number.

It is not a de Polignac number, because 110021222121 - 2⁶ = 110021222057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110021222121.

It is not an unprimeable number, because it can be changed into a prime (110021222161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43360 + ... + 471086.

It is an arithmetic number, because the mean of its divisors is an integer number (9238924800).

Almost surely, 2^110021222121 is an apocalyptic number.

It is an amenable number.

110021222121 is a deficient number, since it is larger than the sum of its proper divisors (37801574679).

110021222121 is a wasteful number, since it uses less digits than its factorization.

110021222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428388.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110021222121 its reverse (121222120011), we get a palindrome (231243342132).

The spelling of 110021222121 in words is "one hundred ten billion, twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".