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12101210202001 = 71591690349239
BaseRepresentation
bin1011000000011000100001…
…0101011101111110010001
31120211212100010221002002111
42300012020111131332101
53041231234302431001
641423115203545321
72356166161356514
oct260061025357621
946755303832074
1012101210202001
113946104754648
12143536698b241
1369a1a6b5628b
142db9b7666d7b
1515eba850d851
hexb018855df91

12101210202001 has 4 divisors (see below), whose sum is σ = 12102900558400. Its totient is φ = 12099519845604.

The previous prime is 12101210201929. The next prime is 12101210202031. The reversal of 12101210202001 is 10020201210121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12101210202001 - 221 = 12101208104849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101210202031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845167461 + ... + 845181778.

It is an arithmetic number, because the mean of its divisors is an integer number (3025725139600).

Almost surely, 212101210202001 is an apocalyptic number.

It is an amenable number.

12101210202001 is a deficient number, since it is larger than the sum of its proper divisors (1690356399).

12101210202001 is an equidigital number, since it uses as much as digits as its factorization.

12101210202001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690356398.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12101210202001 its reverse (10020201210121), we get a palindrome (22121411412122).

The spelling of 12101210202001 in words is "twelve trillion, one hundred one billion, two hundred ten million, two hundred two thousand, one".

Divisors: 1 7159 1690349239 12101210202001