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2001221102200 = 235221147422301
BaseRepresentation
bin11101000111110010000…
…100101010101001111000
321002022111112120021021111
4131013302010222221320
5230242000100232300
64131203121250104
7264404060462545
oct35076204525170
97068445507244
102001221102200
1170179315aa61
12283a24a93934
13116939536858
146cc06b13bcc
15370ca2d59ba
hex1d1f212aa78

2001221102200 has 48 divisors (see below), whose sum is σ = 4674890531160. Its totient is φ = 796694640000.

The previous prime is 2001221102159. The next prime is 2001221102297. The reversal of 2001221102200 is 22011221002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23668951 + ... + 23753350.

Almost surely, 22001221102200 is an apocalyptic number.

2001221102200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2001221102200 is an abundant number, since it is smaller than the sum of its proper divisors (2673669428960).

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

2001221102200 is a wasteful number, since it uses less digits than its factorization.

2001221102200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47422528 (or 47422519 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2001221102200 its reverse (22011221002), we get a palindrome (2023232323202).

The spelling of 2001221102200 in words is "two trillion, one billion, two hundred twenty-one million, one hundred two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 211 422 844 1055 1688 2110 4220 5275 8440 10550 21100 42200 47422301 94844602 189689204 237111505 379378408 474223010 948446020 1185557525 1896892040 2371115050 4742230100 9484460200 10006105511 20012211022 40024422044 50030527555 80048844088 100061055110 200122110220 250152637775 400244220440 500305275550 1000610551100 2001221102200