2011212122323 has 16 divisors (see below), whose sum is σ = 2072467373760. Its totient is φ = 1950564441600.

The previous prime is 2011212122273. The next prime is 2011212122329. The reversal of 2011212122323 is 3232212121102.

It is a cyclic number.

It is not a de Polignac number, because 2011212122323 - 2²⁵ = 2011178567891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011212122294 and 2011212122303.

It is not an unprimeable number, because it can be changed into a prime (2011212122329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5909143 + ... + 6240223.

It is an arithmetic number, because the mean of its divisors is an integer number (129529210860).

Almost surely, 2^{2011212122323} is an apocalyptic number.

2011212122323 is a deficient number, since it is larger than the sum of its proper divisors (61255251437).

2011212122323 is a wasteful number, since it uses less digits than its factorization.

2011212122323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331998.

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

Adding to 2011212122323 its reverse (3232212121102), we get a palindrome (5243424243425).

The spelling of 2011212122323 in words is "two trillion, eleven billion, two hundred twelve million, one hundred twenty-two thousand, three hundred twenty-three".