Search a number
-
+
120310221212 = 22172290777237
BaseRepresentation
bin111000000001100001…
…1000100100110011100
3102111112121220110222222
41300003003010212130
53432343404034322
6131134133324512
711456254002266
oct1600303044634
9374477813888
10120310221212
1147028a8a995
121b397796738
13b46455360c
145b7461ab36
1531e2332e42
hex1c030c499c

120310221212 has 24 divisors (see below), whose sum is σ = 222940381104. Its totient is φ = 56613370112.

The previous prime is 120310221211. The next prime is 120310221221. The reversal of 120310221212 is 212122013021.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120310221211) 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, 1519058 + ... + 1596294.

It is an arithmetic number, because the mean of its divisors is an integer number (9289182546).

Almost surely, 2120310221212 is an apocalyptic number.

It is an amenable number.

120310221212 is a deficient number, since it is larger than the sum of its proper divisors (102630159892).

120310221212 is a wasteful number, since it uses less digits than its factorization.

120310221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100165 (or 100163 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 120310221212 its reverse (212122013021), we get a palindrome (332432234233).

The spelling of 120310221212 in words is "one hundred twenty billion, three hundred ten million, two hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 22907 45814 77237 91628 154474 308948 389419 778838 1313029 1557676 2626058 5252116 1769267959 3538535918 7077071836 30077555303 60155110606 120310221212