2011011211212 has 48 divisors (see below), whose sum is σ = 4807557492192. Its totient is φ = 653885317120.

The previous prime is 2011011211169. The next prime is 2011011211273. The reversal of 2011011211212 is 2121121101102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2011011211191 and 2011011211200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2868988 + ... + 3500444.

It is an arithmetic number, because the mean of its divisors is an integer number (100157447754).

Almost surely, 2^{2011011211212} is an apocalyptic number.

It is an amenable number.

2011011211212 is an abundant number, since it is smaller than the sum of its proper divisors (2796546280980).

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

2011011211212 is a wasteful number, since it uses less digits than its factorization.

2011011211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637978 (or 637976 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2011011211212 its reverse (2121121101102), we get a palindrome (4132132312314).

The spelling of 2011011211212 in words is "two trillion, eleven billion, eleven million, two hundred eleven thousand, two hundred twelve".