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2012112201 = 311431417979
BaseRepresentation
bin111011111101110…
…0110010101001001
312012020010220001010
41313323212111021
513110100042301
6531354314133
7100601446221
oct16773462511
95166126033
102012112201
1194286a750
12481a28949
13260b28448
1415132d081
15bb9a65d6
hex77ee6549

2012112201 has 16 divisors (see below), whose sum is σ = 2994773760. Its totient is φ = 1191101520.

The previous prime is 2012112173. The next prime is 2012112233. The reversal of 2012112201 is 1022112102.

It is not a de Polignac number, because 2012112201 - 27 = 2012112073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012112301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 707571 + ... + 710408.

It is an arithmetic number, because the mean of its divisors is an integer number (187173360).

Almost surely, 22012112201 is an apocalyptic number.

It is an amenable number.

2012112201 is a deficient number, since it is larger than the sum of its proper divisors (982661559).

2012112201 is a wasteful number, since it uses less digits than its factorization.

2012112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418036.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2012112201 is about 44856.5736654061. The cubic root of 2012112201 is about 1262.4593355657.

Adding to 2012112201 its reverse (1022112102), we get a palindrome (3034224303).

Subtracting from 2012112201 its reverse (1022112102), we obtain a palindrome (990000099).

The spelling of 2012112201 in words is "two billion, twelve million, one hundred twelve thousand, two hundred one".

Divisors: 1 3 11 33 43 129 473 1419 1417979 4253937 15597769 46793307 60973097 182919291 670704067 2012112201