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12212100201 = 378917773677
BaseRepresentation
bin10110101111110010…
…11101110001101001
31011112002012222010110
423113321131301221
5200002244201301
65335443404533
7611425065450
oct132771356151
934462188113
1012212100201
1151a74596a4
122449983749
1311c80975c2
1483bc6db97
154b71ba0d6
hex2d7e5dc69

12212100201 has 32 divisors (see below), whose sum is σ = 18833713920. Its totient is φ = 6894176256.

The previous prime is 12212100149. The next prime is 12212100203. The reversal of 12212100201 is 10200121221.

It is not a de Polignac number, because 12212100201 - 210 = 12212099177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212100203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3319375 + ... + 3323051.

It is an arithmetic number, because the mean of its divisors is an integer number (588553560).

Almost surely, 212212100201 is an apocalyptic number.

It is an amenable number.

12212100201 is a deficient number, since it is larger than the sum of its proper divisors (6621613719).

12212100201 is a wasteful number, since it uses less digits than its factorization.

12212100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12212100201 its reverse (10200121221), we get a palindrome (22412221422).

The spelling of 12212100201 in words is "twelve billion, two hundred twelve million, one hundred thousand, two hundred one".

Divisors: 1 3 7 21 89 267 623 1777 1869 3677 5331 11031 12439 25739 37317 77217 158153 327253 474459 981759 1107071 2290771 3321213 6534029 6872313 19602087 45738203 137214609 581528581 1744585743 4070700067 12212100201