11221022000021 has 4 divisors (see below), whose sum is σ = 11289862625952. Its totient is φ = 11152181374092.

The previous prime is 11221021999969. The next prime is 11221022000029. The reversal of 11221022000021 is 12000022012211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11221022000021 - 2³⁸ = 10946144093077 is a prime.

It is a super-2 number, since 2×11221022000021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221022000029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34420312721 + ... + 34420313046.

It is an arithmetic number, because the mean of its divisors is an integer number (2822465656488).

Almost surely, 2^{11221022000021} is an apocalyptic number.

It is an amenable number.

11221022000021 is a deficient number, since it is larger than the sum of its proper divisors (68840625931).

11221022000021 is an equidigital number, since it uses as much as digits as its factorization.

11221022000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68840625930.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11221022000021 its reverse (12000022012211), we get a palindrome (23221044012232).

The spelling of 11221022000021 in words is "eleven trillion, two hundred twenty-one billion, twenty-two million, twenty-one", and thus it is an aban number.