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112121200221 = 379473085233
BaseRepresentation
bin110100001101011110…
…0011011111001011101
3101201101220211010001020
41220122330123321131
53314111011401341
6123301402234353
711046316322442
oct1503274337135
9351356733036
10112121200221
1143606549248
12198911b59b9
13a75aacb574
1455d8bcb9c9
152db344b566
hex1a1af1be5d

112121200221 has 8 divisors (see below), whose sum is σ = 151387274880. Its totient is φ = 73801296192.

The previous prime is 112121200201. The next prime is 112121200231. The reversal of 112121200221 is 122002121211.

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

It is not a de Polignac number, because 112121200221 - 26 = 112121200157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112121200221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121200201) 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, 236542380 + ... + 236542853.

It is an arithmetic number, because the mean of its divisors is an integer number (18923409360).

Almost surely, 2112121200221 is an apocalyptic number.

It is an amenable number.

112121200221 is a deficient number, since it is larger than the sum of its proper divisors (39266074659).

112121200221 is an equidigital number, since it uses as much as digits as its factorization.

112121200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473085315.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112121200221 its reverse (122002121211), we get a palindrome (234123321432).

The spelling of 112121200221 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred thousand, two hundred twenty-one".

Divisors: 1 3 79 237 473085233 1419255699 37373733407 112121200221