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122200120211 = 139400009247
BaseRepresentation
bin111000111001110110…
…0011101101110010011
3102200102100002022001012
41301303230131232103
54000231212321321
6132045444401135
711554142612021
oct1616354355623
9380370068035
10122200120211
1147908866a94
121b8246a61ab
13b6a5c5b650
145cb3615711
1532a31e805b
hex1c73b1db93

122200120211 has 4 divisors (see below), whose sum is σ = 131600129472. Its totient is φ = 112800110952.

The previous prime is 122200120201. The next prime is 122200120219. The reversal of 122200120211 is 112021002221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122200120211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122200120219) 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, 4700004611 + ... + 4700004636.

It is an arithmetic number, because the mean of its divisors is an integer number (32900032368).

Almost surely, 2122200120211 is an apocalyptic number.

122200120211 is a deficient number, since it is larger than the sum of its proper divisors (9400009261).

122200120211 is an equidigital number, since it uses as much as digits as its factorization.

122200120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9400009260.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122200120211 its reverse (112021002221), we get a palindrome (234221122432).

The spelling of 122200120211 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty thousand, two hundred eleven".

Divisors: 1 13 9400009247 122200120211