2011231213222 has 32 divisors (see below), whose sum is σ = 3762482088960. Its totient is φ = 783342718080.

The previous prime is 2011231213217. The next prime is 2011231213241. The reversal of 2011231213222 is 2223121321102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2011231213193 and 2011231213202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1638238 + ... + 2589649.

It is an arithmetic number, because the mean of its divisors is an integer number (117577565280).

Almost surely, 2^{2011231213222} is an apocalyptic number.

2011231213222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2011231213222 is a deficient number, since it is larger than the sum of its proper divisors (1751250875738).

2011231213222 is a wasteful number, since it uses less digits than its factorization.

2011231213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230996.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2011231213222 its reverse (2223121321102), we get a palindrome (4234352534324).

The spelling of 2011231213222 in words is "two trillion, eleven billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred twenty-two".