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12021010221023 = 71234769721177
BaseRepresentation
bin1010111011101101110000…
…0010110100011111011111
31120120012022212111220202122
42232323130002310133133
53033423012104033043
641322213104013155
72350326560650136
oct256733402643737
946505285456678
1012021010221023
113915099978931
1214219040011bb
13692765472a2b
142d7b6a11291d
1515ca626db368
hexaeedc0b47df

12021010221023 has 8 divisors (see below), whose sum is σ = 12190389052320. Its totient is φ = 11851633301760.

The previous prime is 12021010221007. The next prime is 12021010221037. The reversal of 12021010221023 is 32012201012021.

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 12021010221023 - 24 = 12021010221007 is a prime.

It is a super-2 number, since 2×120210102210232 (a number of 27 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 = 12021010220992 and 12021010221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021010221223) 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, 16308011 + ... + 17029187.

It is an arithmetic number, because the mean of its divisors is an integer number (1523798631540).

Almost surely, 212021010221023 is an apocalyptic number.

12021010221023 is a deficient number, since it is larger than the sum of its proper divisors (169378831297).

12021010221023 is an equidigital number, since it uses as much as digits as its factorization.

12021010221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956017.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12021010221023 its reverse (32012201012021), we get a palindrome (44033211233044).

The spelling of 12021010221023 in words is "twelve trillion, twenty-one billion, ten million, two hundred twenty-one thousand, twenty-three".

Divisors: 1 71 234769 721177 16668599 51203567 169310003113 12021010221023