11000020212 has 48 divisors (see below), whose sum is σ = 28862191680. Its totient is φ = 3622493664.

The previous prime is 11000020193. The next prime is 11000020249. The reversal of 11000020212 is 21202000011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11000020194 and 11000020203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604603 + ... + 622530.

It is an arithmetic number, because the mean of its divisors is an integer number (601295660).

Almost surely, 2^11000020212 is an apocalyptic number.

11000020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11000020212 is an abundant number, since it is smaller than the sum of its proper divisors (17862171468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11000020212 is a wasteful number, since it uses less digits than its factorization.

11000020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227229 (or 1227221 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 11000020212 its reverse (21202000011), we get a palindrome (32202020223).

The spelling of 11000020212 in words is "eleven billion, twenty thousand, two hundred twelve".