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22111202123 = 472053229153
BaseRepresentation
bin10100100101111011…
…100010101101001011
32010001222010110002222
4110211323202231023
5330240431431443
614054023444255
71411636055063
oct244573425513
963058113088
1022111202123
11941721946a
124350bb668b
132114bb856a
1410da84a3a3
15896297468
hex525ee2b4b

22111202123 has 8 divisors (see below), whose sum is σ = 22592751168. Its totient is φ = 21630115584.

The previous prime is 22111202081. The next prime is 22111202147. The reversal of 22111202123 is 32120211122.

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 22111202123 - 220 = 22110153547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111202153) 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 7 ways as a sum of consecutive naturals, for example, 18086 + ... + 211067.

It is an arithmetic number, because the mean of its divisors is an integer number (2824093896).

Almost surely, 222111202123 is an apocalyptic number.

22111202123 is a deficient number, since it is larger than the sum of its proper divisors (481549045).

22111202123 is a wasteful number, since it uses less digits than its factorization.

22111202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231253.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22111202123 its reverse (32120211122), we get a palindrome (54231413245).

The spelling of 22111202123 in words is "twenty-two billion, one hundred eleven million, two hundred two thousand, one hundred twenty-three".

Divisors: 1 47 2053 96491 229153 10770191 470451109 22111202123