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110121121021 = 2323320548819
BaseRepresentation
bin110011010001110111…
…0101111010011111101
3101112020112022120011211
41212203232233103331
53301012001333041
6122331113444421
710645622040652
oct1464356572375
9345215276154
10110121121021
114277a55812a
1219413410711
13a4cc627152
145489311c29
152ce7a70481
hex19a3baf4fd

110121121021 has 8 divisors (see below), whose sum is σ = 115402173120. Its totient is φ = 104881167072.

The previous prime is 110121121009. The next prime is 110121121109. The reversal of 110121121021 is 120121121011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 110121121021 - 29 = 110121120509 is a prime.

It is a super-2 number, since 2×1101211210212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110121120992 and 110121121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110121121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10269051 + ... + 10279768.

It is an arithmetic number, because the mean of its divisors is an integer number (14425271640).

Almost surely, 2110121121021 is an apocalyptic number.

It is an amenable number.

110121121021 is a deficient number, since it is larger than the sum of its proper divisors (5281052099).

110121121021 is a wasteful number, since it uses less digits than its factorization.

110121121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20549075.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 110121121021 its reverse (120121121011), we get a palindrome (230242242032).

The spelling of 110121121021 in words is "one hundred ten billion, one hundred twenty-one million, one hundred twenty-one thousand, twenty-one".

Divisors: 1 23 233 5359 20548819 472622837 4787874827 110121121021