11011211022021 has 64 divisors (see below), whose sum is σ = 17906794633728. Its totient is φ = 5875230670848.

The previous prime is 11011211021981. The next prime is 11011211022083. The reversal of 11011211022021 is 12022011211011.

It is a happy number.

11011211022021 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 11011211022021 - 2¹⁹ = 11011210497733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011211422021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24604371 + ... + 25047903.

It is an arithmetic number, because the mean of its divisors is an integer number (279793666152).

Almost surely, 2^{11011211022021} is an apocalyptic number.

It is an amenable number.

11011211022021 is a deficient number, since it is larger than the sum of its proper divisors (6895583611707).

11011211022021 is a wasteful number, since it uses less digits than its factorization.

11011211022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444110.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11011211022021 its reverse (12022011211011), we get a palindrome (23033222233032).

The spelling of 11011211022021 in words is "eleven trillion, eleven billion, two hundred eleven million, twenty-two thousand, twenty-one".