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12211121201012 = 226451473225903
BaseRepresentation
bin1011000110110001111110…
…0010101001111101110100
31121020101001000212100001122
42301230133202221331310
53100031334011413022
641545413414043112
72400136652425046
oct261543742517564
947211030770048
1012211121201012
113988786635a18
12145271b949498
136a7671a90b76
14303042abda96
1516298c8c5742
hexb1b1f8a9f74

12211121201012 has 12 divisors (see below), whose sum is σ = 21372774728256. Its totient is φ = 6104614135800.

The previous prime is 12211121200879. The next prime is 12211121201021. The reversal of 12211121201012 is 21010212111221.

It is a super-2 number, since 2×122111212010122 (a number of 27 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, 236587148 + ... + 236638755.

It is an arithmetic number, because the mean of its divisors is an integer number (1781064560688).

Almost surely, 212211121201012 is an apocalyptic number.

It is an amenable number.

12211121201012 is a deficient number, since it is larger than the sum of its proper divisors (9161653527244).

12211121201012 is a wasteful number, since it uses less digits than its factorization.

12211121201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473232358 (or 473232356 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12211121201012 its reverse (21010212111221), we get a palindrome (33221333312233).

The spelling of 12211121201012 in words is "twelve trillion, two hundred eleven billion, one hundred twenty-one million, two hundred one thousand, twelve".

Divisors: 1 2 4 6451 12902 25804 473225903 946451806 1892903612 3052780300253 6105560600506 12211121201012