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22101213331 = 731816172711
BaseRepresentation
bin10100100101010101…
…011100000010010011
32010001021022222001201
4110211111130002103
5330230402311311
614053025412031
71411455133201
oct244525340223
963037288051
1022101213331
11941161676a
12434979a017
132112acbb32
1410d93aa071
158954729c1
hex52555c093

22101213331 has 16 divisors (see below), whose sum is σ = 22572583488. Its totient is φ = 21634905600.

The previous prime is 22101213319. The next prime is 22101213349. The reversal of 22101213331 is 13331210122.

It is a cyclic number.

It is not a de Polignac number, because 22101213331 - 223 = 22092824723 is a prime.

It is a super-2 number, since 2×221012133312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22101213299 and 22101213308.

It is not an unprimeable number, because it can be changed into a prime (22101213311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8151066 + ... + 8153776.

It is an arithmetic number, because the mean of its divisors is an integer number (1410786468).

Almost surely, 222101213331 is an apocalyptic number.

22101213331 is a deficient number, since it is larger than the sum of its proper divisors (471370157).

22101213331 is a wasteful number, since it uses less digits than its factorization.

22101213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 22101213331 its reverse (13331210122), we get a palindrome (35432423453).

The spelling of 22101213331 in words is "twenty-two billion, one hundred one million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 73 181 617 2711 13213 45041 111677 197903 490691 1672687 8152421 35820443 122106151 302756347 22101213331