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12020020212005 = 513238040147299
BaseRepresentation
bin1010111011101010000100…
…0010001111000100100101
31120120002202212122020200222
42232322201002033010211
53033414000133241010
641321530540414125
72350263210010361
oct256724102170445
946502685566628
1012020020212005
113914731059463
121421688547345
13692638323290
142d7ab48462a1
1515ca05830355
hexaeea108f125

12020020212005 has 16 divisors (see below), whose sum is σ = 16208936956800. Its totient is φ = 8490395546688.

The previous prime is 12020020211999. The next prime is 12020020212073. The reversal of 12020020212005 is 50021202002021.

It is a cyclic number.

It is not a de Polignac number, because 12020020212005 - 214 = 12020020195621 is a prime.

It is a super-2 number, since 2×120200202120052 (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 15 ways as a sum of consecutive naturals, for example, 4020072155 + ... + 4020075144.

It is an arithmetic number, because the mean of its divisors is an integer number (1013058559800).

Almost surely, 212020020212005 is an apocalyptic number.

It is an amenable number.

12020020212005 is a deficient number, since it is larger than the sum of its proper divisors (4188916744795).

12020020212005 is a wasteful number, since it uses less digits than its factorization.

12020020212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040147340.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 12020020212005 its reverse (50021202002021), we get a palindrome (62041222214026).

The spelling of 12020020212005 in words is "twelve trillion, twenty billion, twenty million, two hundred twelve thousand, five".

Divisors: 1 5 13 23 65 115 299 1495 8040147299 40200736495 104521914887 184923387877 522609574435 924616939385 2404004042401 12020020212005