200211001011521 has 2 divisors, whose sum is σ = 200211001011522. Its totient is φ = 200211001011520.

The previous prime is 200211001011517. The next prime is 200211001011559. The reversal of 200211001011521 is 125110100112002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168647234280625 + 31563766730896 = 12986425^2 + 5618164^2 .

It is a cyclic number.

It is not a de Polignac number, because 200211001011521 - 2² = 200211001011517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200211001011521.

It is not a weakly prime, because it can be changed into another prime (200211001011121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100105500505760 + 100105500505761.

It is an arithmetic number, because the mean of its divisors is an integer number (100105500505761).

Almost surely, 2^{200211001011521} is an apocalyptic number.

It is an amenable number.

200211001011521 is a deficient number, since it is larger than the sum of its proper divisors (1).

200211001011521 is an equidigital number, since it uses as much as digits as its factorization.

200211001011521 is an odious number, because the sum of its binary digits is odd.

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

Adding to 200211001011521 its reverse (125110100112002), we get a palindrome (325321101123523).

The spelling of 200211001011521 in words is "two hundred trillion, two hundred eleven billion, one million, eleven thousand, five hundred twenty-one".