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2201201331 = 37137765103
BaseRepresentation
bin1000001100110011…
…1010101010110011
312200101221121120020
42003030322222303
514002001420311
61002231214523
7105355621410
oct20314725263
95611847506
102201201331
11a2a58015a
12515217443
132910623c4
1416c4b1107
15cd3a7c06
hex8333aab3

2201201331 has 16 divisors (see below), whose sum is σ = 3378699264. Its totient is φ = 1248646464.

The previous prime is 2201201329. The next prime is 2201201351. The reversal of 2201201331 is 1331021022.

2201201331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2201201331 - 21 = 2201201329 is a prime.

It is a super-2 number, since 2×22012013312 = 9690574599192343122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2201201331.

It is not an unprimeable number, because it can be changed into a prime (2201201351) 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, 379675 + ... + 385428.

It is an arithmetic number, because the mean of its divisors is an integer number (211168704).

Almost surely, 22201201331 is an apocalyptic number.

2201201331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2201201331 is a deficient number, since it is larger than the sum of its proper divisors (1177497933).

2201201331 is a wasteful number, since it uses less digits than its factorization.

2201201331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765250.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2201201331 is about 46916.9620819592. The cubic root of 2201201331 is about 1300.8281372324.

Adding to 2201201331 its reverse (1331021022), we get a palindrome (3532222353).

The spelling of 2201201331 in words is "two billion, two hundred one million, two hundred one thousand, three hundred thirty-one".

Divisors: 1 3 7 21 137 411 959 2877 765103 2295309 5355721 16067163 104819111 314457333 733733777 2201201331