110221122021 has 16 divisors (see below), whose sum is σ = 155644291584. Its totient is φ = 69141461504.

The previous prime is 110221122017. The next prime is 110221122047. The reversal of 110221122021 is 120221122011.

It is a cyclic number.

It is not a de Polignac number, because 110221122021 - 2² = 110221122017 is a prime.

It is a super-2 number, since 2×110221122021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110221122071) 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, 51360 + ... + 472313.

It is an arithmetic number, because the mean of its divisors is an integer number (9727768224).

Almost surely, 2^110221122021 is an apocalyptic number.

It is an amenable number.

110221122021 is a deficient number, since it is larger than the sum of its proper divisors (45423169563).

110221122021 is a wasteful number, since it uses less digits than its factorization.

110221122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527820.

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

Adding to 110221122021 its reverse (120221122011), we get a palindrome (230442244032).

The spelling of 110221122021 in words is "one hundred ten billion, two hundred twenty-one million, one hundred twenty-two thousand, twenty-one".