20220011111121 has 16 divisors (see below), whose sum is σ = 27333409249536. Its totient is φ = 13293365314176.

The previous prime is 20220011111107. The next prime is 20220011111159. The reversal of 20220011111121 is 12111111002202.

It is a happy number.

It is not a de Polignac number, because 20220011111121 - 2¹⁹ = 20220010586833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20220011111121.

It is not an unprimeable number, because it can be changed into a prime (20220011111191) 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, 5419170 + ... + 8355083.

It is an arithmetic number, because the mean of its divisors is an integer number (1708338078096).

Almost surely, 2^{20220011111121} is an apocalyptic number.

It is an amenable number.

20220011111121 is a deficient number, since it is larger than the sum of its proper divisors (7113398138415).

20220011111121 is a wasteful number, since it uses less digits than its factorization.

20220011111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13781032.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20220011111121 its reverse (12111111002202), we get a palindrome (32331122113323).

The spelling of 20220011111121 in words is "twenty trillion, two hundred twenty billion, eleven million, one hundred eleven thousand, one hundred twenty-one".