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2100211220210 = 251571915769829
BaseRepresentation
bin11110100011111110010…
…101111111111011110010
321102210000022221021212112
4132203332111333323302
5233402213033021320
64244453531125322
7304510122551645
oct36437625777362
97383008837775
102100211220210
1173a770532844
1229b0505a3842
13123083a5918c
14739179b3a5c
1539970a3aec5
hex1e8fe57fef2

2100211220210 has 32 divisors (see below), whose sum is σ = 3804712130160. Its totient is φ = 834678104832.

The previous prime is 2100211220057. The next prime is 2100211220227. The reversal of 2100211220210 is 120221120012.

It can be written as a sum of positive squares in 8 ways, for example, as 1772157409 + 2098439062801 = 42097^2 + 1448599^2 .

It is a super-2 number, since 2×21002112202102 (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30041576 + ... + 30111404.

Almost surely, 22100211220210 is an apocalyptic number.

2100211220210 is a deficient number, since it is larger than the sum of its proper divisors (1704500909950).

2100211220210 is a wasteful number, since it uses less digits than its factorization.

2100211220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89150.

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

Adding to 2100211220210 its reverse (120221120012), we get a palindrome (2220432340222).

The spelling of 2100211220210 in words is "two trillion, one hundred billion, two hundred eleven million, two hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 157 314 785 1570 19157 38314 69829 95785 139658 191570 349145 698290 3007649 6015298 10963153 15038245 21926306 30076490 54815765 109631530 1337714153 2675428306 6688570765 13377141530 210021122021 420042244042 1050105610105 2100211220210