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2000212221 = 3795248201
BaseRepresentation
bin111011100111000…
…1101000011111101
312011101202022100010
41313032031003331
513044023242341
6530251253433
7100365344340
oct16716150375
95141668303
102000212221
11937082057
12479a4a279
1325b51cb37
1414d912457
15ba905716
hex7738d0fd

2000212221 has 8 divisors (see below), whose sum is σ = 3047942464. Its totient is φ = 1142978400.

The previous prime is 2000212219. The next prime is 2000212237. The reversal of 2000212221 is 1222120002.

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

It is not a de Polignac number, because 2000212221 - 21 = 2000212219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2000212197 and 2000212206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000212211) 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 7 ways as a sum of consecutive naturals, for example, 47624080 + ... + 47624121.

It is an arithmetic number, because the mean of its divisors is an integer number (380992808).

Almost surely, 22000212221 is an apocalyptic number.

2000212221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2000212221 is a deficient number, since it is larger than the sum of its proper divisors (1047730243).

2000212221 is an equidigital number, since it uses as much as digits as its factorization.

2000212221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95248211.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2000212221 is about 44723.7321899682. The cubic root of 2000212221 is about 1259.9656119363.

Adding to 2000212221 its reverse (1222120002), we get a palindrome (3222332223).

It can be divided in two parts, 20002 and 12221, that multiplied together give a palindrome (244444442).

The spelling of 2000212221 in words is "two billion, two hundred twelve thousand, two hundred twenty-one".

Divisors: 1 3 7 21 95248201 285744603 666737407 2000212221