2011322211231 has 24 divisors (see below), whose sum is σ = 2906832727344. Its totient is φ = 1235976071040.

The previous prime is 2011322211191. The next prime is 2011322211257. The reversal of 2011322211231 is 1321122231102.

It is not a de Polignac number, because 2011322211231 - 2⁶ = 2011322211167 is a prime.

It is a super-2 number, since 2×2011322211231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011322211198 and 2011322211207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011322211931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25056910 + ... + 25137051.

It is an arithmetic number, because the mean of its divisors is an integer number (121118030306).

Almost surely, 2^{2011322211231} is an apocalyptic number.

2011322211231 is a deficient number, since it is larger than the sum of its proper divisors (895510516113).

2011322211231 is a wasteful number, since it uses less digits than its factorization.

2011322211231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50194039 (or 50194020 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2011322211231 its reverse (1321122231102), we get a palindrome (3332444442333).

The spelling of 2011322211231 in words is "two trillion, eleven billion, three hundred twenty-two million, two hundred eleven thousand, two hundred thirty-one".