Search a number
-
+
121002011212 = 2279382917757
BaseRepresentation
bin111000010110001001…
…0000010101001001100
3102120022211122001110211
41300230102002221030
53440303003324322
6131330525012204
711512354060615
oct1605422025114
9376284561424
10121002011212
1147353531a65
121b54b3b4064
13b544979b04
145bdc458c0c
153232e32b77
hex1c2c482a4c

121002011212 has 12 divisors (see below), whose sum is σ = 214433944480. Its totient is φ = 59735169936.

The previous prime is 121002011197. The next prime is 121002011237. The reversal of 121002011212 is 212110200121.

It is a junction number, because it is equal to n+sod(n) for n = 121002011192 and 121002011201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191458563 + ... + 191459194.

Almost surely, 2121002011212 is an apocalyptic number.

It is an amenable number.

121002011212 is a deficient number, since it is larger than the sum of its proper divisors (93431933268).

121002011212 is a wasteful number, since it uses less digits than its factorization.

121002011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382917840 (or 382917838 counting only the distinct ones).

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

Adding to 121002011212 its reverse (212110200121), we get a palindrome (333112211333).

The spelling of 121002011212 in words is "one hundred twenty-one billion, two million, eleven thousand, two hundred twelve".

Divisors: 1 2 4 79 158 316 382917757 765835514 1531671028 30250502803 60501005606 121002011212