Search a number
-
+
2002221201012 = 2231974431911881
BaseRepresentation
bin11101001000101101101…
…011101111011001110100
321002102002020102112221020
4131020231223233121310
5230301022111413022
64131450245021140
7264440623254534
oct35105553573164
97072066375836
102002221201012
11702156740aaa
122840639b47b0
13116a687a99b6
146cc9d8894c4
1537137ed635c
hex1d22daef674

2002221201012 has 48 divisors (see below), whose sum is σ = 4706166370752. Its totient is φ = 662519952640.

The previous prime is 2002221200927. The next prime is 2002221201017. The reversal of 2002221201012 is 2101021222002.

It is a junction number, because it is equal to n+sod(n) for n = 2002221200982 and 2002221201000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002221201017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91312 + ... + 2003192.

It is an arithmetic number, because the mean of its divisors is an integer number (98045132724).

Almost surely, 22002221201012 is an apocalyptic number.

It is an amenable number.

2002221201012 is an abundant number, since it is smaller than the sum of its proper divisors (2703945169740).

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

2002221201012 is a wasteful number, since it uses less digits than its factorization.

2002221201012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912528 (or 1912526 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2002221201012 its reverse (2101021222002), we get a palindrome (4103242423014).

The spelling of 2002221201012 in words is "two trillion, two billion, two hundred twenty-one million, two hundred one thousand, twelve".

Divisors: 1 2 3 4 6 12 197 394 443 591 788 886 1182 1329 1772 2364 2658 5316 87271 174542 261813 349084 523626 1047252 1911881 3823762 5735643 7647524 11471286 22942572 376640557 753281114 846963283 1129921671 1506562228 1693926566 2259843342 2540889849 3387853132 4519686684 5081779698 10163559396 166851766751 333703533502 500555300253 667407067004 1001110600506 2002221201012