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12102211010 = 251210221101
BaseRepresentation
bin10110100010101100…
…10001010111000010
31011020102110000111102
423101112101113002
5144241131223020
65320520214402
7605622045011
oct132126212702
934212400442
1012102211010
11515042328a
12241900a402
1311ab3a0806
1482b426a78
154ac710475
hex2d15915c2

12102211010 has 8 divisors (see below), whose sum is σ = 21783979836. Its totient is φ = 4840884400.

The previous prime is 12102210973. The next prime is 12102211027. The reversal of 12102211010 is 1011220121.

It can be written as a sum of positive squares in 2 ways, for example, as 11091670489 + 1010540521 = 105317^2 + 31789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121022110102 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12102210982 and 12102211000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605110541 + ... + 605110560.

Almost surely, 212102211010 is an apocalyptic number.

12102211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102211010 is a deficient number, since it is larger than the sum of its proper divisors (9681768826).

12102211010 is a wasteful number, since it uses less digits than its factorization.

12102211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210221108.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12102211010 its reverse (1011220121), we get a palindrome (13113431131).

The spelling of 12102211010 in words is "twelve billion, one hundred two million, two hundred eleven thousand, ten".

Divisors: 1 2 5 10 1210221101 2420442202 6051105505 12102211010