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2122101112 = 231153230063
BaseRepresentation
bin111111001111100…
…1011000101111000
312110220002220110111
41332133023011320
513321224213422
6550323554104
7103405363465
oct17637130570
95426086414
102122101112
11999963a7a
124b282b934
1327a858741
14161ba066c
15c6480a77
hex7e7cb178

2122101112 has 16 divisors (see below), whose sum is σ = 3982407840. Its totient is φ = 1060125696.

The previous prime is 2122101103. The next prime is 2122101119. The reversal of 2122101112 is 2111012212.

It is a junction number, because it is equal to n+sod(n) for n = 2122101092 and 2122101101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122101119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105808 + ... + 124255.

It is an arithmetic number, because the mean of its divisors is an integer number (248900490).

Almost surely, 22122101112 is an apocalyptic number.

It is an amenable number.

2122101112 is a deficient number, since it is larger than the sum of its proper divisors (1860306728).

2122101112 is a wasteful number, since it uses less digits than its factorization.

2122101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231222 (or 231218 counting only the distinct ones).

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

The square root of 2122101112 is about 46066.2687006447. The cubic root of 2122101112 is about 1285.0559130238.

Adding to 2122101112 its reverse (2111012212), we get a palindrome (4233113324).

Subtracting from 2122101112 its reverse (2111012212), we obtain a square (11088900 = 33302).

The spelling of 2122101112 in words is "two billion, one hundred twenty-two million, one hundred one thousand, one hundred twelve".

Divisors: 1 2 4 8 1153 2306 4612 9224 230063 460126 920252 1840504 265262639 530525278 1061050556 2122101112