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22122132700 = 2252221221327
BaseRepresentation
bin10100100110100101…
…001111010011011100
32010002201200210001011
4110212211033103130
5330301231221300
614055054025004
71412131011463
oct244645172334
963081623034
1022122132700
1194224047a8
1243547a8164
132117244865
1410dc0939da
15897205eba
hex52694f4dc

22122132700 has 18 divisors (see below), whose sum is σ = 48005028176. Its totient is φ = 8848853040.

The previous prime is 22122132653. The next prime is 22122132701. The reversal of 22122132700 is 723122122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122132701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110610564 + ... + 110610763.

Almost surely, 222122132700 is an apocalyptic number.

22122132700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22122132700 is an abundant number, since it is smaller than the sum of its proper divisors (25882895476).

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

22122132700 is a wasteful number, since it uses less digits than its factorization.

22122132700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221221341 (or 221221334 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 22122132700 its reverse (723122122), we get a palindrome (22845254822).

The spelling of 22122132700 in words is "twenty-two billion, one hundred twenty-two million, one hundred thirty-two thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 221221327 442442654 884885308 1106106635 2212213270 4424426540 5530533175 11061066350 22122132700