11221022010021 has 64 divisors (see below), whose sum is σ = 15833180160000. Its totient is φ = 7059004908032.

The previous prime is 11221022009987. The next prime is 11221022010043. The reversal of 11221022010021 is 12001022012211.

It is not a de Polignac number, because 11221022010021 - 2¹⁹ = 11221021485733 is a prime.

It is a super-2 number, since 2×11221022010021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221022010061) 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, 231437260 + ... + 231485738.

It is an arithmetic number, because the mean of its divisors is an integer number (247393440000).

Almost surely, 2^{11221022010021} is an apocalyptic number.

It is an amenable number.

11221022010021 is a deficient number, since it is larger than the sum of its proper divisors (4612158149979).

11221022010021 is a wasteful number, since it uses less digits than its factorization.

11221022010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48946.

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

Adding to 11221022010021 its reverse (12001022012211), we get a palindrome (23222044022232).

The spelling of 11221022010021 in words is "eleven trillion, two hundred twenty-one billion, twenty-two million, ten thousand, twenty-one".