Search a number
-
+
21001022222102 = 2131942512190733
BaseRepresentation
bin1001100011001101011100…
…11110000010111100010110
32202100200022100101012020122
410301212232132002330112
510223040043142101402
6112355423022231542
74265162623354166
oct461465636027426
982320270335218
1021001022222102
11676753560458a
12243217ba255b2
13b9450729a410
145286523585a6
1526644121cca2
hex1319ae782f16

21001022222102 has 16 divisors (see below), whose sum is σ = 35710240216560. Its totient is φ = 9182633198112.

The previous prime is 21001022222093. The next prime is 21001022222129. The reversal of 21001022222102 is 20122222010012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21256094873 + ... + 21256095860.

It is an arithmetic number, because the mean of its divisors is an integer number (2231890013535).

Almost surely, 221001022222102 is an apocalyptic number.

21001022222102 is a deficient number, since it is larger than the sum of its proper divisors (14709217994458).

21001022222102 is a wasteful number, since it uses less digits than its factorization.

21001022222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42512190767.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 21001022222102 its reverse (20122222010012), we get a palindrome (41123244232114).

The spelling of 21001022222102 in words is "twenty-one trillion, one billion, twenty-two million, two hundred twenty-two thousand, one hundred two".

Divisors: 1 2 13 19 26 38 247 494 42512190733 85024381466 552658479529 807731623927 1105316959058 1615463247854 10500511111051 21001022222102