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12020222012 = 224436783421
BaseRepresentation
bin10110011000111011…
…00000100000111100
31011000201011112201212
423030131200200330
5144104134101022
65304431023552
7603605126021
oct131435404074
934021145655
1012020222012
115109113787
1223b566abb8
1311973c5006
148205a3548
154a54173e2
hex2cc76083c

12020222012 has 12 divisors (see below), whose sum is σ = 21082875576. Its totient is φ = 5996543280.

The previous prime is 12020222003. The next prime is 12020222017. The reversal of 12020222012 is 21022202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020222017) 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, 3389939 + ... + 3393482.

It is an arithmetic number, because the mean of its divisors is an integer number (1756906298).

Almost surely, 212020222012 is an apocalyptic number.

It is an amenable number.

12020222012 is a deficient number, since it is larger than the sum of its proper divisors (9062653564).

12020222012 is a wasteful number, since it uses less digits than its factorization.

12020222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783868 (or 6783866 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12020222012 its reverse (21022202021), we get a palindrome (33042424033).

The spelling of 12020222012 in words is "twelve billion, twenty million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 4 443 886 1772 6783421 13566842 27133684 3005055503 6010111006 12020222012