Search a number
-
+
222212220022220 = 225127379230831467
BaseRepresentation
bin110010100001100111010000…
…011100000110110111001100
31002010210021120200100112210012
4302201213100130012313030
5213111211111311202340
62104334515024132352
764543205651303441
oct6241472034066714
91063707520315705
10222212220022220
116489274516198a
1220b0a272a670b8
1396cb6a3a3550c
143cc31b37459c8
151aa53b30a9565
hexca19d0706dcc

222212220022220 has 48 divisors (see below), whose sum is σ = 471560989347840. Its totient is φ = 87952328501184.

The previous prime is 222212220022201. The next prime is 222212220022253. The reversal of 222212220022220 is 22220022212222.

It is a super-2 number, since 2×2222122200222202 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114453074 + ... + 116378393.

It is an arithmetic number, because the mean of its divisors is an integer number (9824187278080).

Almost surely, 2222212220022220 is an apocalyptic number.

222212220022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212220022220 is an abundant number, since it is smaller than the sum of its proper divisors (249348769325620).

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

222212220022220 is a wasteful number, since it uses less digits than its factorization.

222212220022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230831982 (or 230831980 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 222212220022220 its reverse (22220022212222), we get a palindrome (244432242234442).

The spelling of 222212220022220 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twenty million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 127 254 379 508 635 758 1270 1516 1895 2540 3790 7580 48133 96266 192532 240665 481330 962660 230831467 461662934 923325868 1154157335 2308314670 4616629340 29315596309 58631192618 87485125993 117262385236 146577981545 174970251986 293155963090 349940503972 437425629965 586311926180 874851259930 1749702519860 11110611001111 22221222002222 44442444004444 55553055005555 111106110011110 222212220022220