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12211202012 = 225635422381
BaseRepresentation
bin10110101111101100…
…00010011111011100
31011112000112100001012
423113312002133130
5200002031431022
65335412234352
7611414335022
oct132766023734
934460470035
1012211202012
1151a69a5899
12244960b9b8
1311c7b41829
1483bab8712
154b708dde2
hex2d7d827dc

12211202012 has 12 divisors (see below), whose sum is σ = 21407564136. Its totient is φ = 6094755120.

The previous prime is 12211201993. The next prime is 12211202027. The reversal of 12211202012 is 21020211221.

It is a super-2 number, since 2×122112020122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 2708939 + ... + 2713442.

It is an arithmetic number, because the mean of its divisors is an integer number (1783963678).

Almost surely, 212211202012 is an apocalyptic number.

It is an amenable number.

12211202012 is a deficient number, since it is larger than the sum of its proper divisors (9196362124).

12211202012 is a wasteful number, since it uses less digits than its factorization.

12211202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422948 (or 5422946 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12211202012 its reverse (21020211221), we get a palindrome (33231413233).

The spelling of 12211202012 in words is "twelve billion, two hundred eleven million, two hundred two thousand, twelve".

Divisors: 1 2 4 563 1126 2252 5422381 10844762 21689524 3052800503 6105601006 12211202012