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212112211122202 = 2127918190958223
BaseRepresentation
bin110000001110101000111000…
…111111110001100000011010
31000211000201200200201210011211
4300032220320333301200122
5210300221302021402302
62031043000553213334
762451413220202066
oct6016507077614032
91024021620653154
10212112211122202
1161649313474086
121b95892640124a
1391481322a25a1
143a5440031aaa6
15197c7d326ead7
hexc0ea38ff181a

212112211122202 has 16 divisors (see below), whose sum is σ = 320708510502912. Its totient is φ = 105209556222960.

The previous prime is 212112211122143. The next prime is 212112211122419. The reversal of 212112211122202 is 202221112211212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43147138 + ... + 47811085.

It is an arithmetic number, because the mean of its divisors is an integer number (20044281906432).

Almost surely, 2212112211122202 is an apocalyptic number.

212112211122202 is a deficient number, since it is larger than the sum of its proper divisors (108596299380710).

212112211122202 is a wasteful number, since it uses less digits than its factorization.

212112211122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90967533.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 212112211122202 its reverse (202221112211212), we get a palindrome (414333323333414).

The spelling of 212112211122202 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, two hundred two".

Divisors: 1 2 127 254 9181 18362 1165987 2331974 90958223 181916446 11551694321 23103388642 835087445363 1670174890726 106056105561101 212112211122202