11222020021121 has 16 divisors (see below), whose sum is σ = 13865459067264. Its totient is φ = 8844412391424.

The previous prime is 11222020021109. The next prime is 11222020021151. The reversal of 11222020021121 is 12112002022211.

It is a cyclic number.

It is not a de Polignac number, because 11222020021121 - 2¹⁴ = 11222020004737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11222020021121.

It is not an unprimeable number, because it can be changed into a prime (11222020021151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239896655 + ... + 239943428.

It is an arithmetic number, because the mean of its divisors is an integer number (866591191704).

Almost surely, 2^{11222020021121} is an apocalyptic number.

It is an amenable number.

11222020021121 is a deficient number, since it is larger than the sum of its proper divisors (2643439046143).

11222020021121 is a wasteful number, since it uses less digits than its factorization.

11222020021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479840360.

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

Adding to 11222020021121 its reverse (12112002022211), we get a palindrome (23334022043332).

The spelling of 11222020021121 in words is "eleven trillion, two hundred twenty-two billion, twenty million, twenty-one thousand, one hundred twenty-one".