110021221121 has 16 divisors (see below), whose sum is σ = 128292662400. Its totient is φ = 92407564800.

The previous prime is 110021221117. The next prime is 110021221133. The reversal of 110021221121 is 121122120011.

It is a cyclic number.

It is not a de Polignac number, because 110021221121 - 2² = 110021221117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110021221096 and 110021221105.

It is not an unprimeable number, because it can be changed into a prime (110021221151) 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, 733571 + ... + 870728.

It is an arithmetic number, because the mean of its divisors is an integer number (8018291400).

Almost surely, 2^110021221121 is an apocalyptic number.

It is an amenable number.

110021221121 is a deficient number, since it is larger than the sum of its proper divisors (18271441279).

110021221121 is a wasteful number, since it uses less digits than its factorization.

110021221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604504.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 110021221121 its reverse (121122120011), we get a palindrome (231143341132).

The spelling of 110021221121 in words is "one hundred ten billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-one".