11221002210021 has 32 divisors (see below), whose sum is σ = 15078302668800. Its totient is φ = 7422420772800.

The previous prime is 11221002210001. The next prime is 11221002210049. The reversal of 11221002210021 is 12001220012211.

It is not a de Polignac number, because 11221002210021 - 2¹⁸ = 11221001947877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221002210001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346514251 + ... + 346546631.

It is an arithmetic number, because the mean of its divisors is an integer number (471196958400).

Almost surely, 2^{11221002210021} is an apocalyptic number.

It is an amenable number.

11221002210021 is a deficient number, since it is larger than the sum of its proper divisors (3857300458779).

11221002210021 is a wasteful number, since it uses less digits than its factorization.

11221002210021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34177.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221002210021 its reverse (12001220012211), we get a palindrome (23222222222232).

The spelling of 11221002210021 in words is "eleven trillion, two hundred twenty-one billion, two million, two hundred ten thousand, twenty-one".