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20102202212210 = 252010220221221
BaseRepresentation
bin1001001001000011010001…
…00111110011111101110010
32122011202022000221211010122
410210201220213303331302
510113323302231242320
6110430454010130242
74143223211342066
oct444415047637562
978152260854118
1020102202212210
1164503290a3828
122307b36a20982
13b2a82511aa11
144d6d47973aa6
1524cd875c7d25
hex1248689f3f72

20102202212210 has 8 divisors (see below), whose sum is σ = 36183963981996. Its totient is φ = 8040880884880.

The previous prime is 20102202212201. The next prime is 20102202212333. The reversal of 20102202212210 is 1221220220102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16793612196001 + 3308590016209 = 4098001^2 + 1818953^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1005110110601 + ... + 1005110110620.

Almost surely, 220102202212210 is an apocalyptic number.

20102202212210 is a deficient number, since it is larger than the sum of its proper divisors (16081761769786).

20102202212210 is a wasteful number, since it uses less digits than its factorization.

20102202212210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010220221228.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20102202212210 its reverse (1221220220102), we get a palindrome (21323422432312).

The spelling of 20102202212210 in words is "twenty trillion, one hundred two billion, two hundred two million, two hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 2010220221221 4020440442442 10051101106105 20102202212210