11021212012 has 6 divisors (see below), whose sum is σ = 19287121028. Its totient is φ = 5510606004.

The previous prime is 11021211983. The next prime is 11021212049. The reversal of 11021212012 is 21021212011.

It is a super-2 number, since 2×11021212012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11021211983 and 11021212001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377651498 + ... + 1377651505.

Almost surely, 2^11021212012 is an apocalyptic number.

It is an amenable number.

11021212012 is a deficient number, since it is larger than the sum of its proper divisors (8265909016).

11021212012 is a wasteful number, since it uses less digits than its factorization.

11021212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755303007 (or 2755303005 counting only the distinct ones).

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

Adding to 11021212012 its reverse (21021212011), we get a palindrome (32042424023).

Subtracting 11021212012 from its reverse (21021212011), we obtain a palindrome (9999999999).

The spelling of 11021212012 in words is "eleven billion, twenty-one million, two hundred twelve thousand, twelve".