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2012222893 is a prime number
BaseRepresentation
bin111011111110000…
…0001010110101101
312012020100111212211
41313330001112231
513110112113033
6531400530421
7100602420022
oct16774012655
95166314784
102012222893
1194293592a
12481a80a11
13260b66945
1415135b549
15bb9c92cd
hex77f015ad

2012222893 has 2 divisors, whose sum is σ = 2012222894. Its totient is φ = 2012222892.

The previous prime is 2012222869. The next prime is 2012222903. The reversal of 2012222893 is 3982222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1804805289 + 207417604 = 42483^2 + 14402^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012222893 - 217 = 2012091821 is a prime.

It is a super-2 number, since 2×20122228932 = 8098081942226578898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012229893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006111446 + 1006111447.

It is an arithmetic number, because the mean of its divisors is an integer number (1006111447).

Almost surely, 22012222893 is an apocalyptic number.

It is an amenable number.

2012222893 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012222893 is an equidigital number, since it uses as much as digits as its factorization.

2012222893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2012222893 is about 44857.8074921189. The cubic root of 2012222893 is about 1262.4824856310.

Adding to 2012222893 its reverse (3982222102), we get a palindrome (5994444995).

The spelling of 2012222893 in words is "two billion, twelve million, two hundred twenty-two thousand, eight hundred ninety-three".