11012051211 has 12 divisors (see below), whose sum is σ = 17079916392. Its totient is φ = 6292600608.

The previous prime is 11012051207. The next prime is 11012051227. The reversal of 11012051211 is 11215021011.

It is not a de Polignac number, because 11012051211 - 2² = 11012051207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11012051201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37455810 + ... + 37456103.

It is an arithmetic number, because the mean of its divisors is an integer number (1423326366).

Almost surely, 2^11012051211 is an apocalyptic number.

11012051211 is a deficient number, since it is larger than the sum of its proper divisors (6067865181).

11012051211 is an equidigital number, since it uses as much as digits as its factorization.

11012051211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74911930 (or 74911923 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 11012051211 its reverse (11215021011), we get a palindrome (22227072222).

The spelling of 11012051211 in words is "eleven billion, twelve million, fifty-one thousand, two hundred eleven".