20222211121 has 16 divisors (see below), whose sum is σ = 23866052608. Its totient is φ = 16767550800.

The previous prime is 20222211083. The next prime is 20222211167. The reversal of 20222211121 is 12111222202.

It is a happy number.

It is not a de Polignac number, because 20222211121 - 2³³ = 11632276529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20222211095 and 20222211104.

It is not an unprimeable number, because it can be changed into a prime (20222211221) 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 15 ways as a sum of consecutive naturals, for example, 575566 + ... + 609688.

It is an arithmetic number, because the mean of its divisors is an integer number (1491628288).

Almost surely, 2^20222211121 is an apocalyptic number.

It is an amenable number.

20222211121 is a deficient number, since it is larger than the sum of its proper divisors (3643841487).

20222211121 is a wasteful number, since it uses less digits than its factorization.

20222211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36892.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20222211121 its reverse (12111222202), we get a palindrome (32333433323).

The spelling of 20222211121 in words is "twenty billion, two hundred twenty-two million, two hundred eleven thousand, one hundred twenty-one".