20113220213211 has 32 divisors (see below), whose sum is σ = 28747637038080. Its totient is φ = 12475828911744.

The previous prime is 20113220213131. The next prime is 20113220213221. The reversal of 20113220213211 is 11231202231102.

It is not a de Polignac number, because 20113220213211 - 2¹⁰ = 20113220212187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20113220213221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8475130 + ... + 10585568.

It is an arithmetic number, because the mean of its divisors is an integer number (898363657440).

Almost surely, 2^{20113220213211} is an apocalyptic number.

20113220213211 is a deficient number, since it is larger than the sum of its proper divisors (8634416824869).

20113220213211 is a wasteful number, since it uses less digits than its factorization.

20113220213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114235.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20113220213211 its reverse (11231202231102), we get a palindrome (31344422444313).

The spelling of 20113220213211 in words is "twenty trillion, one hundred thirteen billion, two hundred twenty million, two hundred thirteen thousand, two hundred eleven".