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2012211112201 is a prime number
BaseRepresentation
bin11101010010000001001…
…000001110100100001001
321010100212110012121210221
4131102001020032210021
5230432002021042301
64140221431310041
7265243316150203
oct35220110164411
97110773177727
102012211112201
11706412795154
12285b9151b321
1311799b374054
146d56a543773
153752004eda1
hex1d48120e909

2012211112201 has 2 divisors, whose sum is σ = 2012211112202. Its totient is φ = 2012211112200.

The previous prime is 2012211112151. The next prime is 2012211112211. The reversal of 2012211112201 is 1022111122102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1979370423801 + 32840688400 = 1406901^2 + 181220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012211112201 - 215 = 2012211079433 is a prime.

It is a super-2 number, since 2×20122111122012 (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012211112211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006105556100 + 1006105556101.

It is an arithmetic number, because the mean of its divisors is an integer number (1006105556101).

Almost surely, 22012211112201 is an apocalyptic number.

It is an amenable number.

2012211112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012211112201 is an equidigital number, since it uses as much as digits as its factorization.

2012211112201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2012211112201 its reverse (1022111122102), we get a palindrome (3034322234303).

Subtracting from 2012211112201 its reverse (1022111122102), we obtain a palindrome (990099990099).

The spelling of 2012211112201 in words is "two trillion, twelve billion, two hundred eleven million, one hundred twelve thousand, two hundred one".