10212621005 has 8 divisors (see below), whose sum is σ = 12677736600. Its totient is φ = 7888369216.

The previous prime is 10212620939. The next prime is 10212621017. The reversal of 10212621005 is 50012621201.

It can be written as a sum of positive squares in 4 ways, for example, as 1588341316 + 8624279689 = 39854^2 + 92867^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212621005 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35215790 + ... + 35216079.

It is an arithmetic number, because the mean of its divisors is an integer number (1584717075).

Almost surely, 2^10212621005 is an apocalyptic number.

It is an amenable number.

10212621005 is a deficient number, since it is larger than the sum of its proper divisors (2465115595).

10212621005 is an equidigital number, since it uses as much as digits as its factorization.

10212621005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70431903.

The product of its (nonzero) digits is 240, while the sum is 20.

The spelling of 10212621005 in words is "ten billion, two hundred twelve million, six hundred twenty-one thousand, five".