Search a number
-
+
120022010121221 = 1315885235811979
BaseRepresentation
bin11011010010100011001101…
…010001110100110000000101
3120201221222210020201001010022
4123102203031101310300011
5111212420034042334341
61103133203354104525
734165206204135605
oct3322431521646005
9521858706631108
10120022010121221
113527405982303a
12115650a041b145
1351c80473b3740
14218d14c2c6c05
15dd20abad2e4b
hex6d28cd474c05

120022010121221 has 8 divisors (see below), whose sum is σ = 129254576045280. Its totient is φ = 110789458998192.

The previous prime is 120022010121161. The next prime is 120022010121241. The reversal of 120022010121221 is 122121010220021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120022010121221 - 218 = 120022009859077 is a prime.

It is a super-2 number, since 2×1200220101212212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120022010121221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120022010121241) 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, 17744810 + ... + 23556788.

It is an arithmetic number, because the mean of its divisors is an integer number (16156822005660).

Almost surely, 2120022010121221 is an apocalyptic number.

It is an amenable number.

120022010121221 is a deficient number, since it is larger than the sum of its proper divisors (9232565924059).

120022010121221 is a wasteful number, since it uses less digits than its factorization.

120022010121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7400515.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120022010121221 its reverse (122121010220021), we get a palindrome (242143020341242).

The spelling of 120022010121221 in words is "one hundred twenty trillion, twenty-two billion, ten million, one hundred twenty-one thousand, two hundred twenty-one".

Divisors: 1 13 1588523 5811979 20650799 75555727 9232462317017 120022010121221