12021021151001 has 2 divisors, whose sum is σ = 12021021151002. Its totient is φ = 12021021151000.

The previous prime is 12021021150923. The next prime is 12021021151031. The reversal of 12021021151001 is 10015112012021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9629974368400 + 2391046782601 = 3103220^2 + 1546301^2 .

It is an emirp because it is prime and its reverse (10015112012021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021021151001 - 2⁴² = 7622974639897 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021021151031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010510575500 + 6010510575501.

It is an arithmetic number, because the mean of its divisors is an integer number (6010510575501).

Almost surely, 2^{12021021151001} is an apocalyptic number.

It is an amenable number.

12021021151001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021021151001 is an equidigital number, since it uses as much as digits as its factorization.

12021021151001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 12021021151001 its reverse (10015112012021), we get a palindrome (22036133163022).

The spelling of 12021021151001 in words is "twelve trillion, twenty-one billion, twenty-one million, one hundred fifty-one thousand, one".