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12212121200210 = 253493499175129
BaseRepresentation
bin1011000110110101101100…
…1001010110011001010010
31121020110121201112120001222
42301231123021112121102
53100040411011401320
641550100535325042
72400203514323441
oct261553311263122
947213551476058
1012212121200210
11398914a059138
12145295a820782
136a77a0cca879
143030d982ad58
151629ea5a6825
hexb1b5b256652

12212121200210 has 16 divisors (see below), whose sum is σ = 22044803319000. Its totient is φ = 4870851778176.

The previous prime is 12212121200207. The next prime is 12212121200231. The reversal of 12212121200210 is 1200212121221.

12212121200210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7712389940161 + 4499731260049 = 2777119^2 + 2121257^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1749584075 + ... + 1749591054.

Almost surely, 212212121200210 is an apocalyptic number.

12212121200210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212121200210 is a deficient number, since it is larger than the sum of its proper divisors (9832682118790).

12212121200210 is a wasteful number, since it uses less digits than its factorization.

12212121200210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3499175485.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212121200210 its reverse (1200212121221), we get a palindrome (13412333321431).

The spelling of 12212121200210 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-one million, two hundred thousand, two hundred ten".

Divisors: 1 2 5 10 349 698 1745 3490 3499175129 6998350258 17495875645 34991751290 1221212120021 2442424240042 6106060600105 12212121200210