5211444621001 has 2 divisors, whose sum is σ = 5211444621002. Its totient is φ = 5211444621000.

The previous prime is 5211444620933. The next prime is 5211444621023. The reversal of 5211444621001 is 1001264441125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4970313536400 + 241131084601 = 2229420^2 + 491051^2 .

It is a cyclic number.

It is not a de Polignac number, because 5211444621001 - 2¹¹ = 5211444618953 is a prime.

It is not a weakly prime, because it can be changed into another prime (5211444621041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2605722310500 + 2605722310501.

It is an arithmetic number, because the mean of its divisors is an integer number (2605722310501).

Almost surely, 2^{5211444621001} is an apocalyptic number.

It is an amenable number.

5211444621001 is a deficient number, since it is larger than the sum of its proper divisors (1).

5211444621001 is an equidigital number, since it uses as much as digits as its factorization.

5211444621001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 5211444621001 in words is "five trillion, two hundred eleven billion, four hundred forty-four million, six hundred twenty-one thousand, one".