21201010119001 has 2 divisors, whose sum is σ = 21201010119002. Its totient is φ = 21201010119000.

The previous prime is 21201010118983. The next prime is 21201010119077. The reversal of 21201010119001 is 10091101010212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20694174337225 + 506835781776 = 4549085^2 + 711924^2 .

It is a cyclic number.

It is not a de Polignac number, because 21201010119001 - 2¹⁵ = 21201010086233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21201010119001.

It is not a weakly prime, because it can be changed into another prime (21201010119901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600505059500 + 10600505059501.

It is an arithmetic number, because the mean of its divisors is an integer number (10600505059501).

Almost surely, 2^{21201010119001} is an apocalyptic number.

It is an amenable number.

21201010119001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21201010119001 is an equidigital number, since it uses as much as digits as its factorization.

21201010119001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 21201010119001 its reverse (10091101010212), we get a palindrome (31292111129213).

The spelling of 21201010119001 in words is "twenty-one trillion, two hundred one billion, ten million, one hundred nineteen thousand, one".