211011211012 has 24 divisors (see below), whose sum is σ = 429985112256. Its totient is φ = 88727085408.

The previous prime is 211011211007. The next prime is 211011211013. The reversal of 211011211012 is 210112110112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 211011210983 and 211011211001.

It is not an unprimeable number, because it can be changed into a prime (211011211013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71093938 + ... + 71096905.

It is an arithmetic number, because the mean of its divisors is an integer number (17916046344).

Almost surely, 2^211011211012 is an apocalyptic number.

It is an amenable number.

211011211012 is an abundant number, since it is smaller than the sum of its proper divisors (218973901244).

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

211011211012 is a wasteful number, since it uses less digits than its factorization.

211011211012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142190907 (or 142190905 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211011211012 its reverse (210112110112), we get a palindrome (421123321124).

The spelling of 211011211012 in words is "two hundred eleven billion, eleven million, two hundred eleven thousand, twelve".