110121221101021 has 16 divisors (see below), whose sum is σ = 124847363569600. Its totient is φ = 96289854876288.

The previous prime is 110121221101009. The next prime is 110121221101033. The reversal of 110121221101021 is 120101122121011.

It is an interprime number because it is at equal distance from previous prime (110121221101009) and next prime (110121221101033).

It is not a de Polignac number, because 110121221101021 - 2²¹ = 110121219003869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110121221100986 and 110121221101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121221102021) 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, 21995256 + ... + 26533633.

It is an arithmetic number, because the mean of its divisors is an integer number (7802960223100).

Almost surely, 2^{110121221101021} is an apocalyptic number.

It is an amenable number.

110121221101021 is a deficient number, since it is larger than the sum of its proper divisors (14726142468579).

110121221101021 is a wasteful number, since it uses less digits than its factorization.

110121221101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48538108.

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

Adding to 110121221101021 its reverse (120101122121011), we get a palindrome (230222343222032).

The spelling of 110121221101021 in words is "one hundred ten trillion, one hundred twenty-one billion, two hundred twenty-one million, one hundred one thousand, twenty-one".