20020211121 has 16 divisors (see below), whose sum is σ = 26766911808. Its totient is φ = 13310208000.

The previous prime is 20020211093. The next prime is 20020211131. The reversal of 20020211121 is 12111202002.

It is not a de Polignac number, because 20020211121 - 2⁷ = 20020210993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20020211097 and 20020211106.

It is not an unprimeable number, because it can be changed into a prime (20020211131) 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, 1883221 + ... + 1893821.

It is an arithmetic number, because the mean of its divisors is an integer number (1672931988).

Almost surely, 2^20020211121 is an apocalyptic number.

It is an amenable number.

20020211121 is a deficient number, since it is larger than the sum of its proper divisors (6746700687).

20020211121 is a wasteful number, since it uses less digits than its factorization.

20020211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20020211121 its reverse (12111202002), we get a palindrome (32131413123).

The spelling of 20020211121 in words is "twenty billion, twenty million, two hundred eleven thousand, one hundred twenty-one".