10001212001010 has 24 divisors (see below), whose sum is σ = 26003151202860. Its totient is φ = 2666989866912.

The previous prime is 10001212000987. The next prime is 10001212001051. The reversal of 10001212001010 is 1010021210001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9803016974529 + 198195026481 = 3130977^2 + 445191^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10001212000983 and 10001212001001.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 55562288805 + ... + 55562288984.

Almost surely, 2^{10001212001010} is an apocalyptic number.

10001212001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10001212001010 is an abundant number, since it is smaller than the sum of its proper divisors (16001939201850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10001212001010 is a wasteful number, since it uses less digits than its factorization.

10001212001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111124577802 (or 111124577799 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10001212001010 its reverse (1010021210001), we get a palindrome (11011233211011).

The spelling of 10001212001010 in words is "ten trillion, one billion, two hundred twelve million, one thousand, ten".