2011223012312 has 16 divisors (see below), whose sum is σ = 3771272595840. Its totient is φ = 1005550320096.

The previous prime is 2011223012311. The next prime is 2011223012329. The reversal of 2011223012312 is 2132103221102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011223012311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7508408 + ... + 7771655.

It is an arithmetic number, because the mean of its divisors is an integer number (235704537240).

Almost surely, 2^{2011223012312} is an apocalyptic number.

It is an amenable number.

2011223012312 is a deficient number, since it is larger than the sum of its proper divisors (1760049583528).

2011223012312 is a wasteful number, since it uses less digits than its factorization.

2011223012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15296522 (or 15296518 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2011223012312 its reverse (2132103221102), we get a palindrome (4143326233414).

The spelling of 2011223012312 in words is "two trillion, eleven billion, two hundred twenty-three million, twelve thousand, three hundred twelve".