Search a number
-
+
120210020312221 = 7471972417695937
BaseRepresentation
bin11011010101010010010011…
…100011110010010010011101
3120202121222002000001022200201
4123111102103203302102131
5111224010110144442341
61103355415421023501
734214613236322340
oct3325222343622235
9522558060038621
10120210020312221
1135336868663284
12115956106b4b91
13520c9aa6c8878
1421982a5c80457
15dd6e1264b331
hex6d54938f249d

120210020312221 has 32 divisors (see below), whose sum is σ = 141603289039872. Its totient is φ = 99916644925440.

The previous prime is 120210020312203. The next prime is 120210020312267. The reversal of 120210020312221 is 122213020012021.

It is not a de Polignac number, because 120210020312221 - 213 = 120210020304029 is a prime.

It is a super-3 number, since 3×1202100203122213 (a number of 43 digits) contains 333 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 (120210020312201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11771965 + ... + 19467901.

It is an arithmetic number, because the mean of its divisors is an integer number (4425102782496).

Almost surely, 2120210020312221 is an apocalyptic number.

It is an amenable number.

120210020312221 is a deficient number, since it is larger than the sum of its proper divisors (21393268727651).

120210020312221 is a wasteful number, since it uses less digits than its factorization.

120210020312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7696429.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120210020312221 its reverse (122213020012021), we get a palindrome (242423040324242).

The spelling of 120210020312221 in words is "one hundred twenty trillion, two hundred ten billion, twenty million, three hundred twelve thousand, two hundred twenty-one".

Divisors: 1 7 47 197 241 329 1379 1687 9259 11327 47477 64813 79289 332339 2231419 7695937 15619933 53871559 361709039 1516099589 1854720817 2531963273 10612697123 12983045719 71256680683 87171878399 365380000949 498796764781 610203148793 2557660006643 17172860044603 120210020312221