11020022212121 has 64 divisors (see below), whose sum is σ = 13901584435200. Its totient is φ = 8613287248896.

The previous prime is 11020022212103. The next prime is 11020022212141. The reversal of 11020022212121 is 12121222002011.

It is not a de Polignac number, because 11020022212121 - 2¹⁸ = 11020021949977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11020022212121.

It is not an unprimeable number, because it can be changed into a prime (11020022212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13013750 + ... + 13834656.

It is an arithmetic number, because the mean of its divisors is an integer number (217212256800).

Almost surely, 2^{11020022212121} is an apocalyptic number.

It is an amenable number.

11020022212121 is a deficient number, since it is larger than the sum of its proper divisors (2881562223079).

11020022212121 is a wasteful number, since it uses less digits than its factorization.

11020022212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821118.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11020022212121 its reverse (12121222002011), we get a palindrome (23141244214132).

The spelling of 11020022212121 in words is "eleven trillion, twenty billion, twenty-two million, two hundred twelve thousand, one hundred twenty-one".