10212010321 has 4 divisors (see below), whose sum is σ = 10326752100. Its totient is φ = 10097268544.

The previous prime is 10212010309. The next prime is 10212010337. The reversal of 10212010321 is 12301021201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5033193025 + 5178817296 = 70945^2 + 71964^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212010321 - 2⁹ = 10212009809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10212010021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57370756 + ... + 57370933.

It is an arithmetic number, because the mean of its divisors is an integer number (2581688025).

Almost surely, 2^10212010321 is an apocalyptic number.

It is an amenable number.

10212010321 is a deficient number, since it is larger than the sum of its proper divisors (114741779).

10212010321 is an equidigital number, since it uses as much as digits as its factorization.

10212010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114741778.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10212010321 its reverse (12301021201), we get a palindrome (22513031522).

The spelling of 10212010321 in words is "ten billion, two hundred twelve million, ten thousand, three hundred twenty-one".