11001212211212 has 12 divisors (see below), whose sum is σ = 19293883024416. Its totient is φ = 5488674204240.

The previous prime is 11001212211179. The next prime is 11001212211233. The reversal of 11001212211212 is 21211221210011.

It is a super-2 number, since 2×11001212211212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2982973268 + ... + 2982976955.

It is an arithmetic number, because the mean of its divisors is an integer number (1607823585368).

Almost surely, 2^{11001212211212} is an apocalyptic number.

It is an amenable number.

11001212211212 is a deficient number, since it is larger than the sum of its proper divisors (8292670813204).

11001212211212 is a wasteful number, since it uses less digits than its factorization.

11001212211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5965950688 (or 5965950686 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11001212211212 its reverse (21211221210011), we get a palindrome (32212433421223).

The spelling of 11001212211212 in words is "eleven trillion, one billion, two hundred twelve million, two hundred eleven thousand, two hundred twelve".