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210101212001012 = 221014091271522017
BaseRepresentation
bin101111110001011000000000…
…000110111011001011110100
31000112220110221201002200110212
4233301120000012323023310
5210014244240233013022
62022503055255004552
762153211615541223
oct5761300006731364
91015813851080425
10210101212001012
1160a434729357a2
121b693032969758
1390305c80608a7
1439c4d4ab48cba
1519453348283e2
hexbf16001bb2f4

210101212001012 has 24 divisors (see below), whose sum is σ = 372225355549320. Its totient is φ = 103756196505600.

The previous prime is 210101212000961. The next prime is 210101212001033. The reversal of 210101212001012 is 210100212101012.

It can be written as a sum of positive squares in 4 ways, for example, as 69409493287696 + 140691718713316 = 8331236^2 + 11861354^2 .

It is a congruent number.

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, 635595773 + ... + 635926244.

It is an arithmetic number, because the mean of its divisors is an integer number (15509389814555).

Almost surely, 2210101212001012 is an apocalyptic number.

It is an amenable number.

210101212001012 is a deficient number, since it is larger than the sum of its proper divisors (162124143548308).

210101212001012 is a wasteful number, since it uses less digits than its factorization.

210101212001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271522531 (or 1271522529 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210101212001012 its reverse (210100212101012), we get a palindrome (420201424102024).

The spelling of 210101212001012 in words is "two hundred ten trillion, one hundred one billion, two hundred twelve million, one thousand, twelve".

Divisors: 1 2 4 101 202 404 409 818 1636 41309 82618 165236 1271522017 2543044034 5086088068 128423723717 256847447434 513694894868 520052504953 1040105009906 2080210019812 52525303000253 105050606000506 210101212001012