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2112333021 = 32234703669
BaseRepresentation
bin111110111100111…
…1010010011011101
312110012201122011100
41331321322103131
513311224124041
6545334343313
7103226351211
oct17571722335
95405648140
102112333021
119943a2077
124ab4bab39
132788185c6
1416077a941
15c56a16b6
hex7de7a4dd

2112333021 has 6 divisors (see below), whose sum is σ = 3051147710. Its totient is φ = 1408222008.

The previous prime is 2112333017. The next prime is 2112333029. The reversal of 2112333021 is 1203332112.

It can be written as a sum of positive squares in only one way, i.e., 1773588996 + 338744025 = 42114^2 + 18405^2 .

It is not a de Polignac number, because 2112333021 - 22 = 2112333017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112332985 and 2112333003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112333029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117351826 + ... + 117351843.

Almost surely, 22112333021 is an apocalyptic number.

It is an amenable number.

2112333021 is a deficient number, since it is larger than the sum of its proper divisors (938814689).

2112333021 is a wasteful number, since it uses less digits than its factorization.

2112333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234703675 (or 234703672 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2112333021 is about 45960.1242491793. The cubic root of 2112333021 is about 1283.0811638261.

Adding to 2112333021 its reverse (1203332112), we get a palindrome (3315665133).

Subtracting from 2112333021 its reverse (1203332112), we obtain a palindrome (909000909).

The spelling of 2112333021 in words is "two billion, one hundred twelve million, three hundred thirty-three thousand, twenty-one".

Divisors: 1 3 9 234703669 704111007 2112333021