20002220111211 has 48 divisors (see below), whose sum is σ = 28925283340800. Its totient is φ = 12289319917056.

The previous prime is 20002220111183. The next prime is 20002220111219. The reversal of 20002220111211 is 11211102220002.

It is not a de Polignac number, because 20002220111211 - 2³⁵ = 19967860372843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002220111219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1284738835 + ... + 1284754403.

It is an arithmetic number, because the mean of its divisors is an integer number (602610069600).

Almost surely, 2^{20002220111211} is an apocalyptic number.

20002220111211 is a deficient number, since it is larger than the sum of its proper divisors (8923063229589).

20002220111211 is a wasteful number, since it uses less digits than its factorization.

20002220111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500 (or 19487 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20002220111211 its reverse (11211102220002), we get a palindrome (31213322331213).

The spelling of 20002220111211 in words is "twenty trillion, two billion, two hundred twenty million, one hundred eleven thousand, two hundred eleven".