Search a number
-
+
121012001012 = 2277359203523
BaseRepresentation
bin111000010110011100…
…0001001100011110100
3102120100112102120220102
41300230320021203310
53440313033013022
6131331523053232
711512535015450
oct1605470114364
9376315376812
10121012001012
11473591354a1
121b552811218
13b546a66b36
145bdd8d9660
153233c57a92
hex1c2ce098f4

121012001012 has 24 divisors (see below), whose sum is σ = 245339403456. Its totient is φ = 51151843008.

The previous prime is 121012001003. The next prime is 121012001021. The reversal of 121012001012 is 210100210121.

121012001012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121012001003) and next prime (121012001021).

It is a junction number, because it is equal to n+sod(n) for n = 121012000984 and 121012001002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29599718 + ... + 29603805.

It is an arithmetic number, because the mean of its divisors is an integer number (10222475144).

Almost surely, 2121012001012 is an apocalyptic number.

It is an amenable number.

121012001012 is an abundant number, since it is smaller than the sum of its proper divisors (124327402444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121012001012 is a wasteful number, since it uses less digits than its factorization.

121012001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59203607 (or 59203605 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121012001012 its reverse (210100210121), we get a palindrome (331112211133).

The spelling of 121012001012 in words is "one hundred twenty-one billion, twelve million, one thousand, twelve".

Divisors: 1 2 4 7 14 28 73 146 292 511 1022 2044 59203523 118407046 236814092 414424661 828849322 1657698644 4321857179 8643714358 17287428716 30253000253 60506000506 121012001012