11001212012 has 24 divisors (see below), whose sum is σ = 22005333504. Its totient is φ = 4714181712.

The previous prime is 11001212011. The next prime is 11001212081. The reversal of 11001212012 is 21021210011.

It is a junction number, because it is equal to n+sod(n) for n = 11001211984 and 11001212002.

It is not an unprimeable number, because it can be changed into a prime (11001212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235853 + ... + 278619.

It is an arithmetic number, because the mean of its divisors is an integer number (916888896).

Almost surely, 2^11001212012 is an apocalyptic number.

It is an amenable number.

11001212012 is an abundant number, since it is smaller than the sum of its proper divisors (11004121492).

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

11001212012 is a wasteful number, since it uses less digits than its factorization.

11001212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51965 (or 51963 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11001212012 its reverse (21021210011), we get a palindrome (32022422023).

The spelling of 11001212012 in words is "eleven billion, one million, two hundred twelve thousand, twelve".