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2122012011 = 37101048191
BaseRepresentation
bin111111001111011…
…0101010101101011
312110212221101020110
41332132311111223
513321213341021
6550322025403
7103404542640
oct17636652553
95425841213
102122012011
11999903039
124b27a8263
1327a827012
14161b79dc7
15c6464476
hex7e7b556b

2122012011 has 8 divisors (see below), whose sum is σ = 3233542144. Its totient is φ = 1212578280.

The previous prime is 2122011973. The next prime is 2122012021. The reversal of 2122012011 is 1102102212.

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

It is not a de Polignac number, because 2122012011 - 29 = 2122011499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2122012021) 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, 50524075 + ... + 50524116.

It is an arithmetic number, because the mean of its divisors is an integer number (404192768).

Almost surely, 22122012011 is an apocalyptic number.

2122012011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2122012011 is a deficient number, since it is larger than the sum of its proper divisors (1111530133).

2122012011 is a wasteful number, since it uses less digits than its factorization.

2122012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101048201.

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

The square root of 2122012011 is about 46065.3015945842. The cubic root of 2122012011 is about 1285.0379274891.

Adding to 2122012011 its reverse (1102102212), we get a palindrome (3224114223).

The spelling of 2122012011 in words is "two billion, one hundred twenty-two million, twelve thousand, eleven".

Divisors: 1 3 7 21 101048191 303144573 707337337 2122012011