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12213133313021 = 191394624435181
BaseRepresentation
bin1011000110111001011101…
…1110010000001111111101
31121020120020021000012211122
42301232113132100033331
53100044444112004041
641550345212400325
72400240554203604
oct261562736201775
947216207005748
1012213133313021
1139896193a5503
121452ba17760a5
136a79028b91a4
1430319400ca3b
15162a5937bc4b
hexb1b977903fd

12213133313021 has 8 divisors (see below), whose sum is σ = 12948418509600. Its totient is φ = 11487096987120.

The previous prime is 12213133313011. The next prime is 12213133313063. The reversal of 12213133313021 is 12031333131221.

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 12213133313021 - 242 = 7815086801917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213133313011) 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, 2312214950 + ... + 2312220231.

It is an arithmetic number, because the mean of its divisors is an integer number (1618552313700).

Almost surely, 212213133313021 is an apocalyptic number.

It is an amenable number.

12213133313021 is a deficient number, since it is larger than the sum of its proper divisors (735285196579).

12213133313021 is a wasteful number, since it uses less digits than its factorization.

12213133313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624435339.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12213133313021 its reverse (12031333131221), we get a palindrome (24244466444242).

The spelling of 12213133313021 in words is "twelve trillion, two hundred thirteen billion, one hundred thirty-three million, three hundred thirteen thousand, twenty-one".

Divisors: 1 19 139 2641 4624435181 87864268439 642796490159 12213133313021