20112216211 has 8 divisors (see below), whose sum is σ = 20154934800. Its totient is φ = 20069523552.

The previous prime is 20112216149. The next prime is 20112216251. The reversal of 20112216211 is 11261221102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20112216211 - 2¹¹ = 20112214163 is a prime.

It is a super-2 number, since 2×20112216211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112216251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2557161 + ... + 2565013.

It is an arithmetic number, because the mean of its divisors is an integer number (2519366850).

Almost surely, 2^20112216211 is an apocalyptic number.

20112216211 is a deficient number, since it is larger than the sum of its proper divisors (42718589).

20112216211 is an equidigital number, since it uses as much as digits as its factorization.

20112216211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 20112216211 its reverse (11261221102), we get a palindrome (31373437313).

The spelling of 20112216211 in words is "twenty billion, one hundred twelve million, two hundred sixteen thousand, two hundred eleven".