11020120212 has 12 divisors (see below), whose sum is σ = 25713613856. Its totient is φ = 3673373400.

The previous prime is 11020120211. The next prime is 11020120253. The reversal of 11020120212 is 21202102011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 918343351 = 11020120212 / (1 + 1 + 0 + 2 + 0 + 1 + 2 + 0 + 2 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020120211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459171664 + ... + 459171687.

Almost surely, 2^11020120212 is an apocalyptic number.

11020120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11020120212 is an abundant number, since it is smaller than the sum of its proper divisors (14693493644).

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

11020120212 is a wasteful number, since it uses less digits than its factorization.

11020120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918343358 (or 918343356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11020120212 its reverse (21202102011), we get a palindrome (32222222223).

The spelling of 11020120212 in words is "eleven billion, twenty million, one hundred twenty thousand, two hundred twelve".