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112212221101 = 159917017211
BaseRepresentation
bin110100010000001011…
…1101001110010101101
3101201122021002110012221
41220200113221302231
53314302312033401
6123314413155341
711051503066441
oct1504027516255
9351567073187
10112212221101
1143652967612
12198b778bb51
13a77391a086
145606d22821
152dbb42a7a1
hex1a205e9cad

112212221101 has 4 divisors (see below), whose sum is σ = 112219254304. Its totient is φ = 112205187900.

The previous prime is 112212220993. The next prime is 112212221117. The reversal of 112212221101 is 101122212211.

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: 101122212211 = 123438192677.

It is a cyclic number.

It is not a de Polignac number, because 112212221101 - 223 = 112203832493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212221701) 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, 3492615 + ... + 3524596.

It is an arithmetic number, because the mean of its divisors is an integer number (28054813576).

Almost surely, 2112212221101 is an apocalyptic number.

It is an amenable number.

112212221101 is a deficient number, since it is larger than the sum of its proper divisors (7033203).

112212221101 is an equidigital number, since it uses as much as digits as its factorization.

112212221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7033202.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112212221101 its reverse (101122212211), we get a palindrome (213334433312).

It can be divided in two parts, 11221 and 2221101, that added together give a palindrome (2232322).

The spelling of 112212221101 in words is "one hundred twelve billion, two hundred twelve million, two hundred twenty-one thousand, one hundred one".

Divisors: 1 15991 7017211 112212221101