12011231022 has 32 divisors (see below), whose sum is σ = 28092717312. Its totient is φ = 3351970944.

The previous prime is 12011231009. The next prime is 12011231027. The reversal of 12011231022 is 22013211021.

It is a junction number, because it is equal to n+sod(n) for n = 12011230992 and 12011231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011231027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3323563 + ... + 3327174.

It is an arithmetic number, because the mean of its divisors is an integer number (877897416).

Almost surely, 2^12011231022 is an apocalyptic number.

12011231022 is an abundant number, since it is smaller than the sum of its proper divisors (16081486290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12011231022 is a wasteful number, since it uses less digits than its factorization.

12011231022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6650792.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12011231022 its reverse (22013211021), we get a palindrome (34024442043).

The spelling of 12011231022 in words is "twelve billion, eleven million, two hundred thirty-one thousand, twenty-two".