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10202101212 = 2231409603389
BaseRepresentation
bin10011000000001011…
…11011010111011100
3222100000001102212110
421200011323113130
5131343214214322
64404202234020
7510550300212
oct114005732734
928300042773
1010202101212
114365902706
121b887b5910
13c6782bca4
146cad30cb2
153ea9cec0c
hex26017b5dc

10202101212 has 24 divisors (see below), whose sum is σ = 23821837200. Its totient is φ = 3398281216.

The previous prime is 10202101211. The next prime is 10202101219. The reversal of 10202101212 is 21210120201.

10202101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202101211) 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 7 ways as a sum of consecutive naturals, for example, 284787 + ... + 318602.

It is an arithmetic number, because the mean of its divisors is an integer number (992576550).

Almost surely, 210202101212 is an apocalyptic number.

10202101212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10202101212 is an abundant number, since it is smaller than the sum of its proper divisors (13619735988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10202101212 is a wasteful number, since it uses less digits than its factorization.

10202101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604805 (or 604803 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10202101212 its reverse (21210120201), we get a palindrome (31412221413).

The spelling of 10202101212 in words is "ten billion, two hundred two million, one hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1409 2818 4227 5636 8454 16908 603389 1206778 1810167 2413556 3620334 7240668 850175101 1700350202 2550525303 3400700404 5101050606 10202101212