1011202011211 has 24 divisors (see below), whose sum is σ = 1203498045600. Its totient is φ = 846889344000.

The previous prime is 1011202011151. The next prime is 1011202011217. The reversal of 1011202011211 is 1121102021101.

It is a happy number.

It is not a de Polignac number, because 1011202011211 - 2¹⁹ = 1011201486923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011202011191 and 1011202011200.

It is not an unprimeable number, because it can be changed into a prime (1011202011217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 668886 + ... + 1571563.

It is an arithmetic number, because the mean of its divisors is an integer number (50145751900).

Almost surely, 2^{1011202011211} is an apocalyptic number.

1011202011211 is a deficient number, since it is larger than the sum of its proper divisors (192296034389).

1011202011211 is a wasteful number, since it uses less digits than its factorization.

1011202011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240675 (or 2240668 counting only the distinct ones).

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

Adding to 1011202011211 its reverse (1121102021101), we get a palindrome (2132304032312).

The spelling of 1011202011211 in words is "one trillion, eleven billion, two hundred two million, eleven thousand, two hundred eleven".