2011112122 has 4 divisors (see below), whose sum is σ = 3016668186. Its totient is φ = 1005556060.

The previous prime is 2011112099. The next prime is 2011112137. The reversal of 2011112122 is 2212111102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1689949881 + 321162241 = 41109^2 + 17921^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502778029 + ... + 502778032.

Almost surely, 2^2011112122 is an apocalyptic number.

2011112122 is a deficient number, since it is larger than the sum of its proper divisors (1005556064).

2011112122 is a wasteful number, since it uses less digits than its factorization.

2011112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005556063.

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

The square root of 2011112122 is about 44845.4247610612. The cubic root of 2011112122 is about 1262.2501410845.

Adding to 2011112122 its reverse (2212111102), we get a palindrome (4223223224).

The spelling of 2011112122 in words is "two billion, eleven million, one hundred twelve thousand, one hundred twenty-two".