2011021223223 has 32 divisors (see below), whose sum is σ = 2726123420160. Its totient is φ = 1318485473280.

The previous prime is 2011021223219. The next prime is 2011021223227. The reversal of 2011021223223 is 3223221201102.

It is an interprime number because it is at equal distance from previous prime (2011021223219) and next prime (2011021223227).

It is not a de Polignac number, because 2011021223223 - 2² = 2011021223219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011021223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011021223227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75359443 + ... + 75386123.

It is an arithmetic number, because the mean of its divisors is an integer number (85191356880).

Almost surely, 2^{2011021223223} is an apocalyptic number.

2011021223223 is a deficient number, since it is larger than the sum of its proper divisors (715102196937).

2011021223223 is a wasteful number, since it uses less digits than its factorization.

2011021223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28407.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2011021223223 its reverse (3223221201102), we get a palindrome (5234242424325).

The spelling of 2011021223223 in words is "two trillion, eleven billion, twenty-one million, two hundred twenty-three thousand, two hundred twenty-three".