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110012022121 = 230274777523
BaseRepresentation
bin110011001110100111…
…0100011110101101001
3101111221221000202121211
41212131032203311221
53300301034201441
6122312215233121
710643125521241
oct1463516436551
9344857022554
10110012022121
1142723a11551
12193a29787a1
13a4b2b48ca1
145478a32b21
152cdd1bea81
hex199d3a3d69

110012022121 has 4 divisors (see below), whose sum is σ = 110016822672. Its totient is φ = 110007221572.

The previous prime is 110012022119. The next prime is 110012022139. The reversal of 110012022121 is 121220210011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121220210011 = 743163149677.

It is a cyclic number.

It is not a de Polignac number, because 110012022121 - 21 = 110012022119 is a prime.

It is a super-2 number, since 2×1100120221212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110012022161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365735 + ... + 2411788.

It is an arithmetic number, because the mean of its divisors is an integer number (27504205668).

Almost surely, 2110012022121 is an apocalyptic number.

It is an amenable number.

110012022121 is a deficient number, since it is larger than the sum of its proper divisors (4800551).

110012022121 is an equidigital number, since it uses as much as digits as its factorization.

110012022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4800550.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 110012022121 its reverse (121220210011), we get a palindrome (231232232132).

The spelling of 110012022121 in words is "one hundred ten billion, twelve million, twenty-two thousand, one hundred twenty-one".

Divisors: 1 23027 4777523 110012022121