10021211220001 has 2 divisors, whose sum is σ = 10021211220002. Its totient is φ = 10021211220000.

The previous prime is 10021211219989. The next prime is 10021211220011. The reversal of 10021211220001 is 10002211212001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9685882206225 + 335329013776 = 3112215^2 + 579076^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021211220001 - 2³³ = 10012621285409 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021211220011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010605610000 + 5010605610001.

It is an arithmetic number, because the mean of its divisors is an integer number (5010605610001).

Almost surely, 2^{10021211220001} is an apocalyptic number.

It is an amenable number.

10021211220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021211220001 is an equidigital number, since it uses as much as digits as its factorization.

10021211220001 is an evil number, because the sum of its binary digits is even.

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

Adding to 10021211220001 its reverse (10002211212001), we get a palindrome (20023422432002).

The spelling of 10021211220001 in words is "ten trillion, twenty-one billion, two hundred eleven million, two hundred twenty thousand, one".