11021212200121 has 2 divisors, whose sum is σ = 11021212200122. Its totient is φ = 11021212200120.

The previous prime is 11021212200113. The next prime is 11021212200181. The reversal of 11021212200121 is 12100221212011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8061312170025 + 2959900030096 = 2839245^2 + 1720436^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021212200121 - 2³ = 11021212200113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021212200095 and 11021212200104.

It is not a weakly prime, because it can be changed into another prime (11021212200181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510606100060 + 5510606100061.

It is an arithmetic number, because the mean of its divisors is an integer number (5510606100061).

Almost surely, 2^{11021212200121} is an apocalyptic number.

It is an amenable number.

11021212200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021212200121 is an equidigital number, since it uses as much as digits as its factorization.

11021212200121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11021212200121 its reverse (12100221212011), we get a palindrome (23121433412132).

The spelling of 11021212200121 in words is "eleven trillion, twenty-one billion, two hundred twelve million, two hundred thousand, one hundred twenty-one".