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2000222021 = 73117353281
BaseRepresentation
bin111011100111000…
…1111011101000101
312011101202210210002
41313032033131011
513044024101041
6530251411045
7100365415040
oct16716173505
95141683702
102000222021
11937089456
12479a53a85
1325b524435
1414d915c57
15ba90859b
hex7738f745

2000222021 has 16 divisors (see below), whose sum is σ = 2373393408. Its totient is φ = 1649548800.

The previous prime is 2000221997. The next prime is 2000222047. The reversal of 2000222021 is 1202220002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2000222021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000221993 and 2000222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000222821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10901 + ... + 64181.

It is an arithmetic number, because the mean of its divisors is an integer number (148337088).

Almost surely, 22000222021 is an apocalyptic number.

It is an amenable number.

2000222021 is a deficient number, since it is larger than the sum of its proper divisors (373171387).

2000222021 is a wasteful number, since it uses less digits than its factorization.

2000222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53492.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2000222021 is about 44723.8417513523. The cubic root of 2000222021 is about 1259.9676696584.

Adding to 2000222021 its reverse (1202220002), we get a palindrome (3202442023).

The spelling of 2000222021 in words is "two billion, two hundred twenty-two thousand, twenty-one".

Divisors: 1 7 31 173 217 1211 5363 37541 53281 372967 1651711 9217613 11561977 64523291 285746003 2000222021