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22211300231 = 26399841369
BaseRepresentation
bin10100101011111001…
…011000101110000111
32010022221110221220022
4110223321120232013
5330442043101411
614112001125355
71414262636231
oct245371305607
963287427808
1022211300231
11946877767a
12437a62985b
13212c864903
141109c65251
1589ee6aedb
hex52be58b87

22211300231 has 4 divisors (see below), whose sum is σ = 22212168000. Its totient is φ = 22210432464.

The previous prime is 22211300179. The next prime is 22211300323. The reversal of 22211300231 is 13200311222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22211300231 - 210 = 22211299207 is a prime.

It is a super-2 number, since 2×222113002312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211300131) 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 3 ways as a sum of consecutive naturals, for example, 394286 + ... + 447083.

It is an arithmetic number, because the mean of its divisors is an integer number (5553042000).

Almost surely, 222211300231 is an apocalyptic number.

22211300231 is a deficient number, since it is larger than the sum of its proper divisors (867769).

22211300231 is an equidigital number, since it uses as much as digits as its factorization.

22211300231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867768.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22211300231 its reverse (13200311222), we get a palindrome (35411611453).

The spelling of 22211300231 in words is "twenty-two billion, two hundred eleven million, three hundred thousand, two hundred thirty-one".

Divisors: 1 26399 841369 22211300231