110101112220021 has 32 divisors (see below), whose sum is σ = 163715094316032. Its totient is φ = 65359415047680.

The previous prime is 110101112220007. The next prime is 110101112220061. The reversal of 110101112220021 is 120022211101011.

It is a happy number.

It is not a de Polignac number, because 110101112220021 - 2¹¹ = 110101112217973 is a prime.

It is a super-2 number, since 2×110101112220021² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101112220061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145097490 + ... + 145854323.

It is an arithmetic number, because the mean of its divisors is an integer number (5116096697376).

Almost surely, 2^{110101112220021} is an apocalyptic number.

It is an amenable number.

110101112220021 is a deficient number, since it is larger than the sum of its proper divisors (53613982096011).

110101112220021 is a wasteful number, since it uses less digits than its factorization.

110101112220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290952173.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110101112220021 its reverse (120022211101011), we get a palindrome (230123323321032).

The spelling of 110101112220021 in words is "one hundred ten trillion, one hundred one billion, one hundred twelve million, two hundred twenty thousand, twenty-one".