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212220201012211 = 7592971172955357
BaseRepresentation
bin110000010000001101011101…
…101100100000101111110011
31000211102001102200202121000201
4300100031131230200233303
5210304003432424342321
62031204340415300031
762462255263132420
oct6020153554405763
91024361380677021
10212220201012211
11616900999a1867
121b975843b1a617
1391553821c54a2
143a59726572d47
151980503b59291
hexc1035db20bf3

212220201012211 has 16 divisors (see below), whose sum is σ = 246731195508480. Its totient is φ = 178759737747360.

The previous prime is 212220201012161. The next prime is 212220201012227. The reversal of 212220201012211 is 112210102022212.

It is not a de Polignac number, because 212220201012211 - 219 = 212220200487923 is a prime.

It is a super-2 number, since 2×2122202010122112 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212220201012011) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85250656 + ... + 87704701.

It is an arithmetic number, because the mean of its divisors is an integer number (15420699719280).

Almost surely, 2212220201012211 is an apocalyptic number.

212220201012211 is a deficient number, since it is larger than the sum of its proper divisors (34510994496269).

212220201012211 is a wasteful number, since it uses less digits than its factorization.

212220201012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172958394.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212220201012211 its reverse (112210102022212), we get a palindrome (324430303034423).

The spelling of 212220201012211 in words is "two hundred twelve trillion, two hundred twenty billion, two hundred one million, twelve thousand, two hundred eleven".

Divisors: 1 7 59 413 2971 20797 175289 1227023 172955357 1210687499 10204366063 71430562441 513850365647 3596952559529 30317171573173 212220201012211