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2011012222211 = 6617693956279
BaseRepresentation
bin11101010000111001101…
…010110100110100000011
321010020202220021200220222
4131100321222310310003
5230422023112102321
64135502443053255
7265201520564126
oct35207152646403
97106686250828
102011012222211
11705957a77383
122858b7b1122b
13117839b7aba5
146d4952223bd
153749eb833ab
hex1d439ab4d03

2011012222211 has 8 divisors (see below), whose sum is σ = 2016674167200. Its totient is φ = 2005358192640.

The previous prime is 2011012222199. The next prime is 2011012222213. The reversal of 2011012222211 is 1122222101102.

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-2011012222211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011012222211.

It is not an unprimeable number, because it can be changed into a prime (2011012222213) 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, 1469831 + ... + 2486448.

It is an arithmetic number, because the mean of its divisors is an integer number (252084270900).

Almost surely, 22011012222211 is an apocalyptic number.

2011012222211 is a deficient number, since it is larger than the sum of its proper divisors (5661944989).

2011012222211 is an equidigital number, since it uses as much as digits as its factorization.

2011012222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957709.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2011012222211 its reverse (1122222101102), we get a palindrome (3133234323313).

The spelling of 2011012222211 in words is "two trillion, eleven billion, twelve million, two hundred twenty-two thousand, two hundred eleven".

Divisors: 1 661 769 508309 3956279 2615100419 3042378551 2011012222211