11212020111 has 8 divisors (see below), whose sum is σ = 14969111344. Its totient is φ = 7464804480.

The previous prime is 11212020109. The next prime is 11212020119. The reversal of 11212020111 is 11102021211.

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

It is not a de Polignac number, because 11212020111 - 2¹ = 11212020109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212020119) 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, 2466250 + ... + 2470791.

It is an arithmetic number, because the mean of its divisors is an integer number (1871138918).

Almost surely, 2^11212020111 is an apocalyptic number.

11212020111 is a deficient number, since it is larger than the sum of its proper divisors (3757091233).

11212020111 is an equidigital number, since it uses as much as digits as its factorization.

11212020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4937801.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11212020111 its reverse (11102021211), we get a palindrome (22314041322).

It can be divided in two parts, 112120 and 20111, that added together give a palindrome (132231).

The spelling of 11212020111 in words is "eleven billion, two hundred twelve million, twenty thousand, one hundred eleven".