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1122201031 = 7782920477
BaseRepresentation
bin100001011100011…
…0110110111000111
32220012121201102011
41002320312313013
54244240413111
6303204355051
736544360060
oct10270666707
92805551364
101122201031
115264a9276
122739a5a87
1314b654ba3
14a907b567
15687be021
hex42e36dc7

1122201031 has 8 divisors (see below), whose sum is σ = 1282741920. Its totient is φ = 961716768.

The previous prime is 1122201013. The next prime is 1122201049. The reversal of 1122201031 is 1301022211.

It is an interprime number because it is at equal distance from previous prime (1122201013) and next prime (1122201049).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1122201031 - 27 = 1122200903 is a prime.

It is a super-2 number, since 2×11222010312 = 2518670307954925922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122201131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44565 + ... + 65041.

It is an arithmetic number, because the mean of its divisors is an integer number (160342740).

Almost surely, 21122201031 is an apocalyptic number.

1122201031 is a deficient number, since it is larger than the sum of its proper divisors (160540889).

1122201031 is an equidigital number, since it uses as much as digits as its factorization.

1122201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28313.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1122201031 is about 33499.2691114299. The cubic root of 1122201031 is about 1039.1786633448.

Adding to 1122201031 its reverse (1301022211), we get a palindrome (2423223242).

The spelling of 1122201031 in words is "one billion, one hundred twenty-two million, two hundred one thousand, thirty-one".

Divisors: 1 7 7829 20477 54803 143339 160314433 1122201031