10021000021213 has 2 divisors, whose sum is σ = 10021000021214. Its totient is φ = 10021000021212.

The previous prime is 10021000021187. The next prime is 10021000021283. The reversal of 10021000021213 is 31212000012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6232597131289 + 3788402889924 = 2496517^2 + 1946382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021000021213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10021000021193 and 10021000021202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021000021283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010500010606 + 5010500010607.

It is an arithmetic number, because the mean of its divisors is an integer number (5010500010607).

Almost surely, 2^{10021000021213} is an apocalyptic number.

It is an amenable number.

10021000021213 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021000021213 is an equidigital number, since it uses as much as digits as its factorization.

10021000021213 is an evil number, because the sum of its binary digits is even.

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

Adding to 10021000021213 its reverse (31212000012001), we get a palindrome (41233000033214).

The spelling of 10021000021213 in words is "ten trillion, twenty-one billion, twenty-one thousand, two hundred thirteen".