11020212021 has 64 divisors (see below), whose sum is σ = 19187302400. Its totient is φ = 5463230976.

The previous prime is 11020212017. The next prime is 11020212029. The reversal of 11020212021 is 12021202011.

11020212021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11020212021 - 2² = 11020212017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11020211988 and 11020212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020212029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 650385 + ... + 667113.

It is an arithmetic number, because the mean of its divisors is an integer number (299801600).

Almost surely, 2^11020212021 is an apocalyptic number.

It is an amenable number.

11020212021 is a deficient number, since it is larger than the sum of its proper divisors (8167090379).

11020212021 is a wasteful number, since it uses less digits than its factorization.

11020212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16898.

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

Adding to 11020212021 its reverse (12021202011), we get a palindrome (23041414032).

The spelling of 11020212021 in words is "eleven billion, twenty million, two hundred twelve thousand, twenty-one".