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2111213122 = 22114349927
BaseRepresentation
bin111110111010110…
…1000111001000010
312110010121201221121
41331311220321002
513310432304442
6545254342454
7103214005204
oct17565507102
95403551847
102111213122
119937a7737
124ab05aa2a
13278515945
14160568774
15c552e967
hex7dd68e42

2111213122 has 8 divisors (see below), whose sum is σ = 3167032896. Its totient is φ = 1055535492.

The previous prime is 2111213053. The next prime is 2111213131. The reversal of 2111213122 is 2213121112.

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

It is a junction number, because it is equal to n+sod(n) for n = 2111213096 and 2111213105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17323 + ... + 67249.

It is an arithmetic number, because the mean of its divisors is an integer number (395879112).

Almost surely, 22111213122 is an apocalyptic number.

2111213122 is a deficient number, since it is larger than the sum of its proper divisors (1055819774).

2111213122 is a wasteful number, since it uses less digits than its factorization.

2111213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71072.

The product of its digits is 48, while the sum is 16.

The square root of 2111213122 is about 45947.9392573813. The cubic root of 2111213122 is about 1282.8543726729.

Adding to 2111213122 its reverse (2213121112), we get a palindrome (4324334234).

The spelling of 2111213122 in words is "two billion, one hundred eleven million, two hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 21143 42286 49927 99854 1055606561 2111213122