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2112202101223 = 6313347388433
BaseRepresentation
bin11110101111001001000…
…011100101000111100111
321110220221222220011022201
4132233021003211013213
5234101242214214343
64254155433235331
7305413223425504
oct36571103450747
97426858804281
102112202101223
11744864026165
122a1438262b47
1312424504a146
14743342da4ab
1539e235a994d
hex1ebc90e51e7

2112202101223 has 4 divisors (see below), whose sum is σ = 2115549490288. Its totient is φ = 2108854712160.

The previous prime is 2112202101197. The next prime is 2112202101277. The reversal of 2112202101223 is 3221012022112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2112202101223 is a prime.

It is a super-2 number, since 2×21122021012232 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112202101223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112202101623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673693586 + ... + 1673694847.

It is an arithmetic number, because the mean of its divisors is an integer number (528887372572).

Almost surely, 22112202101223 is an apocalyptic number.

2112202101223 is a deficient number, since it is larger than the sum of its proper divisors (3347389065).

2112202101223 is an equidigital number, since it uses as much as digits as its factorization.

2112202101223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347389064.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2112202101223 its reverse (3221012022112), we get a palindrome (5333214123335).

The spelling of 2112202101223 in words is "two trillion, one hundred twelve billion, two hundred two million, one hundred one thousand, two hundred twenty-three".

Divisors: 1 631 3347388433 2112202101223