Search a number
-
+
22122221132 = 22111947563021
BaseRepresentation
bin10100100110100101…
…100100111001001100
32010002201212021100102
4110212211210321030
5330301242034012
614055055550232
71412131530344
oct244645447114
963081767312
1022122221132
119422465190
12435482b378
132117275b9b
1410dc0b7d24
158972222c2
hex526964e4c

22122221132 has 48 divisors (see below), whose sum is σ = 45402094080. Its totient is φ = 9323611200.

The previous prime is 22122221111. The next prime is 22122221141. The reversal of 22122221132 is 23112222122.

It is a super-2 number, since 2×221222211322 (a number of 21 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, 242219 + ... + 320802.

It is an arithmetic number, because the mean of its divisors is an integer number (945876960).

Almost surely, 222122221132 is an apocalyptic number.

22122221132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22122221132 is an abundant number, since it is smaller than the sum of its proper divisors (23279872948).

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

22122221132 is a wasteful number, since it uses less digits than its factorization.

22122221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563102 (or 563100 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

Adding to 22122221132 its reverse (23112222122), we get a palindrome (45234443254).

The spelling of 22122221132 in words is "twenty-two billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 4 11 19 22 38 44 47 76 94 188 209 418 517 836 893 1034 1786 2068 3572 9823 19646 39292 563021 1126042 2252084 6193231 10697399 12386462 21394798 24772924 26461987 42789596 52923974 105847948 117671389 235342778 291081857 470685556 502777753 582163714 1005555506 1164327428 2011111012 5530555283 11061110566 22122221132