2011322231012 has 24 divisors (see below), whose sum is σ = 3587848874400. Its totient is φ = 986396890176.

The previous prime is 2011322231011. The next prime is 2011322231071. The reversal of 2011322231012 is 2101322231102.

It is not an unprimeable number, because it can be changed into a prime (2011322231011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21745937 + ... + 21838232.

It is an arithmetic number, because the mean of its divisors is an integer number (149493703100).

Almost surely, 2^{2011322231012} is an apocalyptic number.

It is an amenable number.

2011322231012 is a deficient number, since it is larger than the sum of its proper divisors (1576526643388).

2011322231012 is a wasteful number, since it uses less digits than its factorization.

2011322231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43584395 (or 43584393 counting only the distinct ones).

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

Adding to 2011322231012 its reverse (2101322231102), we get a palindrome (4112644462114).

The spelling of 2011322231012 in words is "two trillion, eleven billion, three hundred twenty-two million, two hundred thirty-one thousand, twelve".