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222131312120023 = 11318111085457661
BaseRepresentation
bin110010100000011011111001…
…111100111101000011010111
31002010111112202001212021002221
4302200123321330331003113
5213103344411400320043
62104233414355043211
764534312663421605
oct6240337174750327
91063445661767087
10222131312120023
11648613a6816509
1220ab6652ba0507
1396c3b7b79b287
143cbd2da194875
151aa322a04c8ed
hexca06f9f3d0d7

222131312120023 has 8 divisors (see below), whose sum is σ = 224220818324016. Its totient is φ = 220043976835200.

The previous prime is 222131312119993. The next prime is 222131312120033. The reversal of 222131312120023 is 320021213131222.

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

It is a de Polignac number, because none of the positive numbers 2k-222131312120023 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222131312120023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222131312120033) 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, 542524188 + ... + 542933473.

It is an arithmetic number, because the mean of its divisors is an integer number (28027602290502).

Almost surely, 2222131312120023 is an apocalyptic number.

222131312120023 is a deficient number, since it is larger than the sum of its proper divisors (2089506203993).

222131312120023 is a wasteful number, since it uses less digits than its factorization.

222131312120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085459585.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 222131312120023 its reverse (320021213131222), we get a palindrome (542152525251245).

The spelling of 222131312120023 in words is "two hundred twenty-two trillion, one hundred thirty-one billion, three hundred twelve million, one hundred twenty thousand, twenty-three".

Divisors: 1 113 1811 204643 1085457661 122656715693 1965763824071 222131312120023