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11200122221 = 61792324159
BaseRepresentation
bin10100110111001010…
…00100110101101101
31001220120000011022112
422123211010311231
5140414212402341
65051213253405
7544356316361
oct123345046555
931816004275
1011200122221
1148281a4662
122206a94265
131096525472
147836c52a1
1545841eaeb
hex29b944d6d

11200122221 has 8 divisors (see below), whose sum is σ = 11527833600. Its totient is φ = 10877059440.

The previous prime is 11200122217. The next prime is 11200122239. The reversal of 11200122221 is 12222100211.

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

It is a cyclic number.

It is not a de Polignac number, because 11200122221 - 22 = 11200122217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200122196 and 11200122205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200122421) 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, 1157261 + ... + 1166898.

It is an arithmetic number, because the mean of its divisors is an integer number (1440979200).

Almost surely, 211200122221 is an apocalyptic number.

It is an amenable number.

11200122221 is a deficient number, since it is larger than the sum of its proper divisors (327711379).

11200122221 is an equidigital number, since it uses as much as digits as its factorization.

11200122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324299.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11200122221 its reverse (12222100211), we get a palindrome (23422222432).

The spelling of 11200122221 in words is "eleven billion, two hundred million, one hundred twenty-two thousand, two hundred twenty-one".

Divisors: 1 61 79 4819 2324159 141773699 183608561 11200122221