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12213012202231 = 76137379429349
BaseRepresentation
bin1011000110111001000001…
…0000010000001011110111
31121020112220211010011001211
42301232100100100023313
53100044222110432411
641550325204502251
72400234553605121
oct261562020201367
947215824104054
1012213012202231
113989566aa5145
121452b690aa987
136a78b37937b9
14303181cc4211
15162a4d907221
hexb1b904102f7

12213012202231 has 8 divisors (see below), whose sum is σ = 12229416486000. Its totient is φ = 12196608853440.

The previous prime is 12213012202217. The next prime is 12213012202337. The reversal of 12213012202231 is 13220221031221.

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 12213012202231 - 213 = 12213012194039 is a prime.

It is a super-2 number, since 2×122130122022312 (a number of 27 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 (12213012202631) 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 7 ways as a sum of consecutive naturals, for example, 28230745 + ... + 28660093.

It is an arithmetic number, because the mean of its divisors is an integer number (1528677060750).

Almost surely, 212213012202231 is an apocalyptic number.

12213012202231 is a deficient number, since it is larger than the sum of its proper divisors (16404283769).

12213012202231 is an equidigital number, since it uses as much as digits as its factorization.

12213012202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467489.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12213012202231 its reverse (13220221031221), we get a palindrome (25433233233452).

The spelling of 12213012202231 in words is "twelve trillion, two hundred thirteen billion, twelve million, two hundred two thousand, two hundred thirty-one".

Divisors: 1 761 37379 429349 28445419 326734589 16048636271 12213012202231