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221001022200012 = 223181101750010221
BaseRepresentation
bin110010001111111111001111…
…011011000101100011001100
31001222111111021012222010111220
4302033333033123011203030
5212431340043140400022
62102010245031243340
764356540231550425
oct6217771733054314
91058444235863456
10221001022200012
116446600960227a
122095358b219550
1396413cb54c212
143c80713d7464c
151a83b252a585c
hexc8ffcf6c58cc

221001022200012 has 24 divisors (see below), whose sum is σ = 518518052091312. Its totient is φ = 73260007358400.

The previous prime is 221001022199939. The next prime is 221001022200043. The reversal of 221001022200012 is 210002220100122.

It is a junction number, because it is equal to n+sod(n) for n = 221001022199964 and 221001022200000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50875002939 + ... + 50875007282.

It is an arithmetic number, because the mean of its divisors is an integer number (21604918837138).

Almost surely, 2221001022200012 is an apocalyptic number.

It is an amenable number.

221001022200012 is an abundant number, since it is smaller than the sum of its proper divisors (297517029891300).

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

221001022200012 is a wasteful number, since it uses less digits than its factorization.

221001022200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101750010409 (or 101750010407 counting only the distinct ones).

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

Adding to 221001022200012 its reverse (210002220100122), we get a palindrome (431003242300134).

The spelling of 221001022200012 in words is "two hundred twenty-one trillion, one billion, twenty-two million, two hundred thousand, twelve".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 101750010221 203500020442 305250030663 407000040884 610500061326 1221000122652 18416751850001 36833503700002 55250255550003 73667007400004 110500511100006 221001022200012