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12110021120201 = 25633472438697
BaseRepresentation
bin1011000000111001010110…
…0000011101000011001001
31120212201002012020002122012
42300032111200131003021
53041402310401321301
641431133352305305
72356630420055624
oct260162540350311
946781065202565
1012110021120201
11394991623a924
1214370056a2235
1369ac7c3a2a44
142dc1b18dcdbb
15160021cdaebb
hexb039581d0c9

12110021120201 has 4 divisors (see below), whose sum is σ = 12110493584532. Its totient is φ = 12109548655872.

The previous prime is 12110021120173. The next prime is 12110021120203. The reversal of 12110021120201 is 10202112001121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1307466468025 + 10802554652176 = 1143445^2 + 3286724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12110021120201 is a prime.

It is a super-2 number, since 2×121100211202012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12110021120203) 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, 236193716 + ... + 236244981.

It is an arithmetic number, because the mean of its divisors is an integer number (3027623396133).

Almost surely, 212110021120201 is an apocalyptic number.

It is an amenable number.

12110021120201 is a deficient number, since it is larger than the sum of its proper divisors (472464331).

12110021120201 is an equidigital number, since it uses as much as digits as its factorization.

12110021120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472464330.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12110021120201 its reverse (10202112001121), we get a palindrome (22312133121322).

The spelling of 12110021120201 in words is "twelve trillion, one hundred ten billion, twenty-one million, one hundred twenty thousand, two hundred one".

Divisors: 1 25633 472438697 12110021120201