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1212210210010 = 25121221021001
BaseRepresentation
bin10001101000111101010…
…110111110010011011010
311021212221000101001020211
4101220331112332103122
5124330101303210020
62324514235441334
7153402461526652
oct21507526762332
94255830331224
101212210210010
11428106074648
12176b268b624a
138a40716cb47
1442958025362
15217ebb3085a
hex11a3d5be4da

1212210210010 has 8 divisors (see below), whose sum is σ = 2181978378036. Its totient is φ = 484884084000.

The previous prime is 1212210209993. The next prime is 1212210210019. The reversal of 1212210210010 is 100120122121.

It can be written as a sum of positive squares in 2 ways, for example, as 1116841035249 + 95369174761 = 1056807^2 + 308819^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1212210210019) by changing a digit.

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, 60610510491 + ... + 60610510510.

Almost surely, 21212210210010 is an apocalyptic number.

1212210210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212210210010 is a deficient number, since it is larger than the sum of its proper divisors (969768168026).

1212210210010 is a wasteful number, since it uses less digits than its factorization.

1212210210010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121221021008.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212210210010 its reverse (100120122121), we get a palindrome (1312330332131).

The spelling of 1212210210010 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred ten thousand, ten".

Divisors: 1 2 5 10 121221021001 242442042002 606105105005 1212210210010