11011001212 has 24 divisors (see below), whose sum is σ = 19358136000. Its totient is φ = 5480165376.

The previous prime is 11011001189. The next prime is 11011001227. The reversal of 11011001212 is 21210011011.

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, 770589 + ... + 784747.

It is an arithmetic number, because the mean of its divisors is an integer number (806589000).

Almost surely, 2^11011001212 is an apocalyptic number.

It is an amenable number.

11011001212 is a deficient number, since it is larger than the sum of its proper divisors (8347134788).

11011001212 is a wasteful number, since it uses less digits than its factorization.

11011001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15045 (or 15043 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11011001212 its reverse (21210011011), we get a palindrome (32221012223).

The spelling of 11011001212 in words is "eleven billion, eleven million, one thousand, two hundred twelve".