200121211010011 has 2 divisors, whose sum is σ = 200121211010012. Its totient is φ = 200121211010010.

The previous prime is 200121211009949. The next prime is 200121211010047. The reversal of 200121211010011 is 110010112121002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200121211010011 - 2¹³ = 200121211001819 is a prime.

It is a super-2 number, since 2×200121211010011² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 200121211009973 and 200121211010000.

It is not a weakly prime, because it can be changed into another prime (200121211110011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060605505005 + 100060605505006.

It is an arithmetic number, because the mean of its divisors is an integer number (100060605505006).

Almost surely, 2^{200121211010011} is an apocalyptic number.

200121211010011 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121211010011 is an equidigital number, since it uses as much as digits as its factorization.

200121211010011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 200121211010011 its reverse (110010112121002), we get a palindrome (310131323131013).

The spelling of 200121211010011 in words is "two hundred trillion, one hundred twenty-one billion, two hundred eleven million, ten thousand, eleven".