11021120212 has 24 divisors (see below), whose sum is σ = 20157739560. Its totient is φ = 5265684480.

The previous prime is 11021120207. The next prime is 11021120249. The reversal of 11021120212 is 21202112011.

It can be written as a sum of positive squares in 4 ways, for example, as 998307216 + 10022812996 = 31596^2 + 100114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11021120192 and 11021120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478489 + ... + 500992.

It is an arithmetic number, because the mean of its divisors is an integer number (839905815).

Almost surely, 2^11021120212 is an apocalyptic number.

It is an amenable number.

11021120212 is a deficient number, since it is larger than the sum of its proper divisors (9136619348).

11021120212 is a wasteful number, since it uses less digits than its factorization.

11021120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979611 (or 979609 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11021120212 its reverse (21202112011), we get a palindrome (32223232223).

The spelling of 11021120212 in words is "eleven billion, twenty-one million, one hundred twenty thousand, two hundred twelve".