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22121141 = 79732579
BaseRepresentation
bin101010001100…
…0101010110101
31112121212111112
41110120222311
521130334031
62110044405
7356012060
oct124305265
945555445
1022121141
1111539a39
1274a9705
134776a43
142d1b8d7
151e1e62b
hex1518ab5

22121141 has 8 divisors (see below), whose sum is σ = 25542720. Its totient is φ = 18764928.

The previous prime is 22121137. The next prime is 22121159. The reversal of 22121141 is 14112122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22121141 - 22 = 22121137 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15611 + ... + 16968.

It is an arithmetic number, because the mean of its divisors is an integer number (3192840).

Almost surely, 222121141 is an apocalyptic number.

It is an amenable number.

22121141 is a deficient number, since it is larger than the sum of its proper divisors (3421579).

22121141 is an equidigital number, since it uses as much as digits as its factorization.

22121141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32683.

The product of its digits is 32, while the sum is 14.

The square root of 22121141 is about 4703.3117055964. The cubic root of 22121141 is about 280.7172977781.

Adding to 22121141 its reverse (14112122), we get a palindrome (36233263).

The spelling of 22121141 in words is "twenty-two million, one hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 7 97 679 32579 228053 3160163 22121141