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12121001102201 = 13192526725971
BaseRepresentation
bin1011000001100010001111…
…1101110000101101111001
31120220202102101222222100012
42300120203331300231321
53042042302240232301
641440151103351305
72360466464266145
oct260304375605571
946822371888305
1012121001102201
113953540145912
12143916a8b2535
1369c00c10ba04
142dc933c7c225
15160465c23ebb
hexb0623f70b79

12121001102201 has 4 divisors (see below), whose sum is σ = 12213527828304. Its totient is φ = 12028474376100.

The previous prime is 12121001102191. The next prime is 12121001102207. The reversal of 12121001102201 is 10220110012121.

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 a de Polignac number, because none of the positive numbers 2k-12121001102201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121001102207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46263362855 + ... + 46263363116.

It is an arithmetic number, because the mean of its divisors is an integer number (3053381957076).

Almost surely, 212121001102201 is an apocalyptic number.

It is an amenable number.

12121001102201 is a deficient number, since it is larger than the sum of its proper divisors (92526726103).

12121001102201 is an equidigital number, since it uses as much as digits as its factorization.

12121001102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92526726102.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121001102201 its reverse (10220110012121), we get a palindrome (22341111114322).

The spelling of 12121001102201 in words is "twelve trillion, one hundred twenty-one billion, one million, one hundred two thousand, two hundred one".

Divisors: 1 131 92526725971 12121001102201