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2000222122 = 21000111061
BaseRepresentation
bin111011100111000…
…1111011110101010
312011101202210220211
41313032033132222
513044024101442
6530251411334
7100365415243
oct16716173652
95141683824
102000222122
11937089538
12479a53b4a
1325b5244b2
1414d915cca
15ba908617
hex7738f7aa

2000222122 has 4 divisors (see below), whose sum is σ = 3000333186. Its totient is φ = 1000111060.

The previous prime is 2000222113. The next prime is 2000222137. The reversal of 2000222122 is 2212220002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2212220002 = 21106110001.

It can be written as a sum of positive squares in only one way, i.e., 1931514601 + 68707521 = 43949^2 + 8289^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500055529 + ... + 500055532.

Almost surely, 22000222122 is an apocalyptic number.

2000222122 is a deficient number, since it is larger than the sum of its proper divisors (1000111064).

2000222122 is a wasteful number, since it uses less digits than its factorization.

2000222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000111063.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2000222122 is about 44723.8428805039. The cubic root of 2000222122 is about 1259.9676908655.

Adding to 2000222122 its reverse (2212220002), we get a palindrome (4212442124).

It can be divided in two parts, 20002 and 22122, that multiplied together give a palindrome (442484244).

The spelling of 2000222122 in words is "two billion, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 1000111061 2000222122