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12200222011021 = 111109111091911
BaseRepresentation
bin1011000110001001010111…
…1001100010111010001101
31121012022220110010010011021
42301202111321202322031
53044342023313323041
641540412110354141
72366302606016662
oct261422571427215
947168813103137
1012200222011021
1139840a32a2190
1214505997bb951
136a6625a01915
143026cb371a69
15162550aeacd1
hexb1895e62e8d

12200222011021 has 4 divisors (see below), whose sum is σ = 13309333102944. Its totient is φ = 11091110919100.

The previous prime is 12200222011009. The next prime is 12200222011051. The reversal of 12200222011021 is 12011022200221.

It is a happy number.

12200222011021 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 12200222011021 - 25 = 12200222010989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200222010986 and 12200222011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200222011051) 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, 554555545945 + ... + 554555545966.

It is an arithmetic number, because the mean of its divisors is an integer number (3327333275736).

Almost surely, 212200222011021 is an apocalyptic number.

12200222011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12200222011021 is a deficient number, since it is larger than the sum of its proper divisors (1109111091923).

12200222011021 is a wasteful number, since it uses less digits than its factorization.

12200222011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109111091922.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12200222011021 its reverse (12011022200221), we get a palindrome (24211244211242).

The spelling of 12200222011021 in words is "twelve trillion, two hundred billion, two hundred twenty-two million, eleven thousand, twenty-one".

Divisors: 1 11 1109111091911 12200222011021