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BaseRepresentation
bin100001011100010…
…0001001011001001
32220012110012120011
41002320201023021
54244230042301
6303202431521
736543540100
oct10270411311
92805405504
101122112201
11526448561
122739625a1
1314b623622
14a9057037
15687a2a51
hex42e212c9

1122112201 has 12 divisors (see below), whose sum is σ = 1362068352. Its totient is φ = 919991688.

The previous prime is 1122112193. The next prime is 1122112207. The reversal of 1122112201 is 1022112211.

It is not a de Polignac number, because 1122112201 - 23 = 1122112193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122112207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496705 + ... + 498958.

It is an arithmetic number, because the mean of its divisors is an integer number (113505696).

Almost surely, 21122112201 is an apocalyptic number.

It is an amenable number.

1122112201 is a deficient number, since it is larger than the sum of its proper divisors (239956151).

1122112201 is an equidigital number, since it uses as much as digits as its factorization.

1122112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995700 (or 995693 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1122112201 is about 33497.9432353689. The cubic root of 1122112201 is about 1039.1512432201.

Adding to 1122112201 its reverse (1022112211), we get a palindrome (2144224412).

The spelling of 1122112201 in words is "one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred one".