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22211320231 = 311261956779
BaseRepresentation
bin10100101011111001…
…011101100110100111
32010022221111222100001
4110223321131212213
5330442044221411
614112001402131
71414263051442
oct245371354647
963287458301
1022211320231
119468790701
12437a639347
13212c870a49
141109c6c659
1589ee71dc1
hex52be5d9a7

22211320231 has 8 divisors (see below), whose sum is σ = 22930035200. Its totient is φ = 21492744120.

The previous prime is 22211320223. The next prime is 22211320247. The reversal of 22211320231 is 13202311222.

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 22211320231 - 23 = 22211320223 is a prime.

It is a super-2 number, since 2×222113202312 (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 = 22211320199 and 22211320208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211320291) 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, 362800 + ... + 419578.

It is an arithmetic number, because the mean of its divisors is an integer number (2866254400).

Almost surely, 222211320231 is an apocalyptic number.

22211320231 is a deficient number, since it is larger than the sum of its proper divisors (718714969).

22211320231 is a wasteful number, since it uses less digits than its factorization.

22211320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69429.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22211320231 its reverse (13202311222), we get a palindrome (35413631453).

Subtracting from 22211320231 its reverse (13202311222), we obtain a palindrome (9009009009).

The spelling of 22211320231 in words is "twenty-two billion, two hundred eleven million, three hundred twenty thousand, two hundred thirty-one".

Divisors: 1 31 12619 56779 391189 1760149 716494201 22211320231