2011122111212 has 6 divisors (see below), whose sum is σ = 3519463694628. Its totient is φ = 1005561055604.

The previous prime is 2011122111197. The next prime is 2011122111221. The reversal of 2011122111212 is 2121112211102.

It is a super-3 number, since 3×2011122111212³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251390263898 + ... + 251390263905.

It is an arithmetic number, because the mean of its divisors is an integer number (586577282438).

Almost surely, 2^{2011122111212} is an apocalyptic number.

It is an amenable number.

2011122111212 is a deficient number, since it is larger than the sum of its proper divisors (1508341583416).

2011122111212 is a wasteful number, since it uses less digits than its factorization.

2011122111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502780527807 (or 502780527805 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2011122111212 its reverse (2121112211102), we get a palindrome (4132234322314).

The spelling of 2011122111212 in words is "two trillion, eleven billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twelve".