2011121212 has 6 divisors (see below), whose sum is σ = 3519462128. Its totient is φ = 1005560604.

The previous prime is 2011121201. The next prime is 2011121269. The reversal of 2011121212 is 2121211102.

It is a junction number, because it is equal to n+sod(n) for n = 2011121192 and 2011121201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251390148 + ... + 251390155.

Almost surely, 2^2011121212 is an apocalyptic number.

It is an amenable number.

2011121212 is a deficient number, since it is larger than the sum of its proper divisors (1508340916).

2011121212 is a wasteful number, since it uses less digits than its factorization.

2011121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502780307 (or 502780305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2011121212 is about 44845.5261090780. The cubic root of 2011121212 is about 1262.2520428244.

Adding to 2011121212 its reverse (2121211102), we get a palindrome (4132332314).

The spelling of 2011121212 in words is "two billion, eleven million, one hundred twenty-one thousand, two hundred twelve".