11022120010021 has 4 divisors (see below), whose sum is σ = 11022239958444. Its totient is φ = 11022000061600.

The previous prime is 11022120010019. The next prime is 11022120010043. The reversal of 11022120010021 is 12001002122011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7720540159396 + 3301579850625 = 2778586^2 + 1817025^2 .

It is a cyclic number.

It is not a de Polignac number, because 11022120010021 - 2¹ = 11022120010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11022120009983 and 11022120010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11022120010721) 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, 59836270 + ... + 60020191.

It is an arithmetic number, because the mean of its divisors is an integer number (2755559989611).

Almost surely, 2^{11022120010021} is an apocalyptic number.

It is an amenable number.

11022120010021 is a deficient number, since it is larger than the sum of its proper divisors (119948423).

11022120010021 is an equidigital number, since it uses as much as digits as its factorization.

11022120010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119948422.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11022120010021 its reverse (12001002122011), we get a palindrome (23023122132032).

The spelling of 11022120010021 in words is "eleven trillion, twenty-two billion, one hundred twenty million, ten thousand, twenty-one".