1021200441211 has 2 divisors, whose sum is σ = 1021200441212. Its totient is φ = 1021200441210.

The previous prime is 1021200441187. The next prime is 1021200441263. The reversal of 1021200441211 is 1121440021201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021200441211 - 2⁷ = 1021200441083 is a prime.

It is a super-2 number, since 2×1021200441211² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1021200441011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510600220605 + 510600220606.

It is an arithmetic number, because the mean of its divisors is an integer number (510600220606).

Almost surely, 2^{1021200441211} is an apocalyptic number.

1021200441211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021200441211 is an equidigital number, since it uses as much as digits as its factorization.

1021200441211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1021200441211 its reverse (1121440021201), we get a palindrome (2142640462412).

The spelling of 1021200441211 in words is "one trillion, twenty-one billion, two hundred million, four hundred forty-one thousand, two hundred eleven".