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2221324032012 = 223712607187831
BaseRepresentation
bin100000010100110001001…
…110101101100000001100
321212100121220001121011220
4200110301032231200030
5242343232423011022
64420243455043340
7316325323510431
oct40246116554014
97770556047156
102221324032012
11787070562938
122ba610b10550
1313161565b867
1479726a31b88
153cbad55885c
hex205313ad80c

2221324032012 has 24 divisors (see below), whose sum is σ = 5256090669312. Its totient is φ = 730012592400.

The previous prime is 2221324032001. The next prime is 2221324032019. The reversal of 2221324032012 is 2102304231222.

It is not an unprimeable number, because it can be changed into a prime (2221324032019) 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, 1303593064 + ... + 1303594767.

It is an arithmetic number, because the mean of its divisors is an integer number (219003777888).

Almost surely, 22221324032012 is an apocalyptic number.

It is an amenable number.

2221324032012 is an abundant number, since it is smaller than the sum of its proper divisors (3034766637300).

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

2221324032012 is a wasteful number, since it uses less digits than its factorization.

2221324032012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607187909 (or 2607187907 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 2221324032012 its reverse (2102304231222), we get a palindrome (4323628263234).

The spelling of 2221324032012 in words is "two trillion, two hundred twenty-one billion, three hundred twenty-four million, thirty-two thousand, twelve".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 2607187831 5214375662 7821563493 10428751324 15643126986 31286253972 185110336001 370220672002 555331008003 740441344004 1110662016006 2221324032012