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1122101001 = 32753336059
BaseRepresentation
bin100001011100001…
…1110011100001001
32220012102122012100
41002320132130021
54244224213001
6303202304013
736543462330
oct10270363411
92805378170
101122101001
115264400aa
12273958009
1314b61b4b8
14a9052d17
156879e586
hex42e1e709

1122101001 has 24 divisors (see below), whose sum is σ = 1887312960. Its totient is φ = 629100576.

The previous prime is 1122100949. The next prime is 1122101003. The reversal of 1122101001 is 1001012211.

It is a happy number.

It is not a de Polignac number, because 1122101001 - 219 = 1121576713 is a prime.

It is a super-2 number, since 2×11221010012 = 2518221312890404002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1122101003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164691 + ... + 171368.

It is an arithmetic number, because the mean of its divisors is an integer number (78638040).

Almost surely, 21122101001 is an apocalyptic number.

It is an amenable number.

1122101001 is a deficient number, since it is larger than the sum of its proper divisors (765211959).

1122101001 is a wasteful number, since it uses less digits than its factorization.

1122101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336125 (or 336122 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1122101001 is about 33497.7760605089. The cubic root of 1122101001 is about 1039.1477858913.

Adding to 1122101001 its reverse (1001012211), we get a palindrome (2123113212).

The spelling of 1122101001 in words is "one billion, one hundred twenty-two million, one hundred one thousand, one".

Divisors: 1 3 7 9 21 53 63 159 371 477 1113 3339 336059 1008177 2352413 3024531 7057239 17811127 21171717 53433381 124677889 160300143 374033667 1122101001