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10212001223 = 101101108923
BaseRepresentation
bin10011000001010111…
…01100010111000111
3222100200200102010112
421200223230113013
5131403233014343
64405154343235
7511030402214
oct114053542707
928320612115
1010212001223
114370454736
121b8bb8ab1b
13c698b7198
146cc38ab0b
153eb7d8218
hex260aec5c7

10212001223 has 4 divisors (see below), whose sum is σ = 10313110248. Its totient is φ = 10110892200.

The previous prime is 10212001169. The next prime is 10212001237. The reversal of 10212001223 is 32210021201.

It is a happy number.

10212001223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32210021201 = 101318911101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10212001223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10212001198 and 10212001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212001823) 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 3 ways as a sum of consecutive naturals, for example, 50554361 + ... + 50554562.

It is an arithmetic number, because the mean of its divisors is an integer number (2578277562).

Almost surely, 210212001223 is an apocalyptic number.

10212001223 is a deficient number, since it is larger than the sum of its proper divisors (101109025).

10212001223 is a wasteful number, since it uses less digits than its factorization.

10212001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101109024.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10212001223 its reverse (32210021201), we get a palindrome (42422022424).

The spelling of 10212001223 in words is "ten billion, two hundred twelve million, one thousand, two hundred twenty-three".

Divisors: 1 101 101108923 10212001223