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102223011220 = 225113697125683
BaseRepresentation
bin101111100110011110…
…1110101110110010100
3100202212002122000100121
41133030331311312110
53133323042324340
6114543253521324
710246116154531
oct1371475656624
9322762560317
10102223011220
113a397252360
121798a343244
139841239cb5
144d3a3abd88
1529d449e94a
hex17ccf75d94

102223011220 has 48 divisors (see below), whose sum is σ = 234248833728. Its totient is φ = 37161653760.

The previous prime is 102223011217. The next prime is 102223011251. The reversal of 102223011220 is 22110322201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102223011194 and 102223011203.

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 15 ways as a sum of consecutive naturals, for example, 750499 + ... + 876181.

It is an arithmetic number, because the mean of its divisors is an integer number (4880184036).

Almost surely, 2102223011220 is an apocalyptic number.

102223011220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102223011220 is an abundant number, since it is smaller than the sum of its proper divisors (132025822508).

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

102223011220 is a wasteful number, since it uses less digits than its factorization.

102223011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129400 (or 129398 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102223011220 its reverse (22110322201), we get a palindrome (124333333421).

The spelling of 102223011220 in words is "one hundred two billion, two hundred twenty-three million, eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 3697 7394 14788 18485 36970 40667 73940 81334 125683 162668 203335 251366 406670 502732 628415 813340 1256830 1382513 2513660 2765026 5530052 6912565 13825130 27650260 464650051 929300102 1858600204 2323250255 4646500510 5111150561 9293001020 10222301122 20444602244 25555752805 51111505610 102223011220