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12102202201 = 20995765699
BaseRepresentation
bin10110100010101100…
…01111001101011001
31011020102102120102011
423101112033031121
5144241130432301
65320520105521
7605622010225
oct132126171531
934212376364
1012102202201
115150417701
1224190052a1
1311ab3997bb
1482b423785
154ac70ca51
hex2d158f359

12102202201 has 4 divisors (see below), whose sum is σ = 12107970000. Its totient is φ = 12096434404.

The previous prime is 12102202181. The next prime is 12102202219. The reversal of 12102202201 is 10220220121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12102202201 - 215 = 12102169433 is a prime.

It is a super-2 number, since 2×121022022012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102202241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2880751 + ... + 2884948.

It is an arithmetic number, because the mean of its divisors is an integer number (3026992500).

Almost surely, 212102202201 is an apocalyptic number.

It is an amenable number.

12102202201 is a deficient number, since it is larger than the sum of its proper divisors (5767799).

12102202201 is an equidigital number, since it uses as much as digits as its factorization.

12102202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767798.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12102202201 its reverse (10220220121), we get a palindrome (22322422322).

The spelling of 12102202201 in words is "twelve billion, one hundred two million, two hundred two thousand, two hundred one".

Divisors: 1 2099 5765699 12102202201