Search a number
-
+
2012210322012 = 22321122943370441
BaseRepresentation
bin11101010010000001000…
…101001101101001011100
321010100212101201110212200
4131102001011031221130
5230432001320301022
64140221402331500
7265243306346352
oct35220105155134
97110771643780
102012210322012
117064122a5500
12285b911b9b90
1311799b158497
146d56a3b97d2
153751ee45bac
hex1d48114da5c

2012210322012 has 216 divisors, whose sum is σ = 5918166574320. Its totient is φ = 575041420800.

The previous prime is 2012210321987. The next prime is 2012210322043. The reversal of 2012210322012 is 2102230122102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5246712 + ... + 5617152.

Almost surely, 22012210322012 is an apocalyptic number.

2012210322012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012210322012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959083287160).

2012210322012 is an abundant number, since it is smaller than the sum of its proper divisors (3905956252308).

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

2012210322012 is a wasteful number, since it uses less digits than its factorization.

2012210322012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370545 (or 370529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2012210322012 its reverse (2102230122102), we get a palindrome (4114440444114).

The spelling of 2012210322012 in words is "two trillion, twelve billion, two hundred ten million, three hundred twenty-two thousand, twelve".