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12020211102101 = 89325341518153
BaseRepresentation
bin1010111011101010110001…
…1010011011000110010101
31120120010021011211110200112
42232322230122123012111
53033414343020231401
641322001520052405
72350301015363306
oct256725432330625
946503234743615
1012020211102101
113914819889a74
121421720464105
13692668a3abb7
142d7ad1d367ad
1515ca1748a3bb
hexaeeac69b195

12020211102101 has 8 divisors (see below), whose sum is σ = 12159006580440. Its totient is φ = 11881498666752.

The previous prime is 12020211102043. The next prime is 12020211102103. The reversal of 12020211102101 is 10120111202021.

It can be written as a sum of positive squares in 4 ways, for example, as 6343194844900 + 5677016257201 = 2518570^2 + 2382649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12020211102101 is a prime.

It is a super-2 number, since 2×120202111021012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020211102103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20469560 + ... + 21048593.

It is an arithmetic number, because the mean of its divisors is an integer number (1519875822555).

Almost surely, 212020211102101 is an apocalyptic number.

It is an amenable number.

12020211102101 is a deficient number, since it is larger than the sum of its proper divisors (138795478339).

12020211102101 is an equidigital number, since it uses as much as digits as its factorization.

12020211102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41521495.

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

Adding to 12020211102101 its reverse (10120111202021), we get a palindrome (22140322304122).

The spelling of 12020211102101 in words is "twelve trillion, twenty billion, two hundred eleven million, one hundred two thousand, one hundred one".

Divisors: 1 89 3253 289517 41518153 3695115617 135058551709 12020211102101