11020022120021 has 4 divisors (see below), whose sum is σ = 11020062133344. Its totient is φ = 11019982106700.

The previous prime is 11020022119987. The next prime is 11020022120057. The reversal of 11020022120021 is 12002122002011.

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 11020022120021 - 2¹⁰ = 11020022118997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020022119978 and 11020022120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020028120021) 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, 19590665 + ... + 20145326.

It is an arithmetic number, because the mean of its divisors is an integer number (2755015533336).

Almost surely, 2^{11020022120021} is an apocalyptic number.

It is an amenable number.

11020022120021 is a deficient number, since it is larger than the sum of its proper divisors (40013323).

11020022120021 is an equidigital number, since it uses as much as digits as its factorization.

11020022120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40013322.

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

Adding to 11020022120021 its reverse (12002122002011), we get a palindrome (23022144122032).

The spelling of 11020022120021 in words is "eleven trillion, twenty billion, twenty-two million, one hundred twenty thousand, twenty-one".