1201202020011 has 24 divisors (see below), whose sum is σ = 1863466281984. Its totient is φ = 686262099600.

The previous prime is 1201202019949. The next prime is 1201202020033. The reversal of 1201202020011 is 1100202021021.

It is not a de Polignac number, because 1201202020011 - 2⁷ = 1201202019883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201202020061) 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 in 23 ways as a sum of consecutive naturals, for example, 97435 + ... + 1553028.

It is an arithmetic number, because the mean of its divisors is an integer number (77644428416).

Almost surely, 2^{1201202020011} is an apocalyptic number.

1201202020011 is a deficient number, since it is larger than the sum of its proper divisors (662264261973).

1201202020011 is a wasteful number, since it uses less digits than its factorization.

1201202020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655431 (or 1655424 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1201202020011 its reverse (1100202021021), we get a palindrome (2301404041032).

The spelling of 1201202020011 in words is "one trillion, two hundred one billion, two hundred two million, twenty thousand, eleven".