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12120202222201 = 31771381486331
BaseRepresentation
bin1011000001011111010001…
…0110010001101001111001
31120220200100201202200000001
42300113310112101221321
53042034133232102301
641435535524513001
72360440624026013
oct260276426215171
946820321680001
1012120202222201
1139531701aa507
121438b8724b761
1369bc1275b858
142dc899b251b3
1516041aa1dc01
hexb05f4591a79

12120202222201 has 4 divisors (see below), whose sum is σ = 12120583740304. Its totient is φ = 12119820704100.

The previous prime is 12120202222189. The next prime is 12120202222211. The reversal of 12120202222201 is 10222220202121.

12120202222201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 12120202222201 - 225 = 12120168667769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120202222211) 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, 190711395 + ... + 190774936.

It is an arithmetic number, because the mean of its divisors is an integer number (3030145935076).

Almost surely, 212120202222201 is an apocalyptic number.

It is an amenable number.

12120202222201 is a deficient number, since it is larger than the sum of its proper divisors (381518103).

12120202222201 is an equidigital number, since it uses as much as digits as its factorization.

12120202222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381518102.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12120202222201 its reverse (10222220202121), we get a palindrome (22342422424322).

The spelling of 12120202222201 in words is "twelve trillion, one hundred twenty billion, two hundred two million, two hundred twenty-two thousand, two hundred one".

Divisors: 1 31771 381486331 12120202222201