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12210311001 = 372347875281
BaseRepresentation
bin10110101111100101…
…01000111101011001
31011111221212001210210
423113302220331121
5200001314423001
65335341201333
7611403634230
oct132762507531
934457761723
1012210311001
1151a6447419
122449260249
1311c78bc0c5
1483b925b17
154b6e64dd6
hex2d7ca8f59

12210311001 has 32 divisors (see below), whose sum is σ = 19422885888. Its totient is φ = 6671301120.

The previous prime is 12210310991. The next prime is 12210311017. The reversal of 12210311001 is 10011301221.

It is not a de Polignac number, because 12210311001 - 27 = 12210310873 is a prime.

It is a super-2 number, since 2×122103110012 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12210311041) 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, 2309481 + ... + 2314761.

It is an arithmetic number, because the mean of its divisors is an integer number (606965184).

Almost surely, 212210311001 is an apocalyptic number.

It is an amenable number.

12210311001 is a deficient number, since it is larger than the sum of its proper divisors (7212574887).

12210311001 is a wasteful number, since it uses less digits than its factorization.

12210311001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101.

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

Adding to 12210311001 its reverse (10011301221), we get a palindrome (22221612222).

The spelling of 12210311001 in words is "twelve billion, two hundred ten million, three hundred eleven thousand, one".

Divisors: 1 3 7 21 23 69 161 483 4787 5281 14361 15843 33509 36967 100527 110101 110901 121463 330303 364389 770707 850241 2312121 2550723 25280147 75840441 176961029 530883087 581443381 1744330143 4070103667 12210311001