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22122201332 = 2271171825329
BaseRepresentation
bin10100100110100101…
…100000000011110100
32010002201211021012002
4110212211200003310
5330301240420312
614055055314432
71412131415540
oct244645400364
963081737162
1022122201332
119422451320
12435481ba18
132117269b7a
1410dc0b0a20
1589721b4c2
hex5269600f4

22122201332 has 24 divisors (see below), whose sum is σ = 48266621760. Its totient is φ = 8619039360.

The previous prime is 22122201329. The next prime is 22122201373. The reversal of 22122201332 is 23310222122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35912357 + ... + 35912972.

It is an arithmetic number, because the mean of its divisors is an integer number (2011109240).

Almost surely, 222122201332 is an apocalyptic number.

22122201332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22122201332 is an abundant number, since it is smaller than the sum of its proper divisors (26144420428).

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

22122201332 is a wasteful number, since it uses less digits than its factorization.

22122201332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71825351 (or 71825349 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22122201332 its reverse (23310222122), we get a palindrome (45432423454).

The spelling of 22122201332 in words is "twenty-two billion, one hundred twenty-two million, two hundred one thousand, three hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 71825329 143650658 287301316 502777303 790078619 1005554606 1580157238 2011109212 3160314476 5530550333 11061100666 22122201332