2123322021111 has 16 divisors (see below), whose sum is σ = 2862989971200. Its totient is φ = 1399601974848.

The previous prime is 2123322021101. The next prime is 2123322021127. The reversal of 2123322021111 is 1111202233212.

It is not a de Polignac number, because 2123322021111 - 2⁶ = 2123322021047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123322021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10995190 + ... + 11186636.

It is an arithmetic number, because the mean of its divisors is an integer number (178936873200).

Almost surely, 2^{2123322021111} is an apocalyptic number.

2123322021111 is a deficient number, since it is larger than the sum of its proper divisors (739667950089).

2123322021111 is a wasteful number, since it uses less digits than its factorization.

2123322021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233078.

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

Adding to 2123322021111 its reverse (1111202233212), we get a palindrome (3234524254323).

The spelling of 2123322021111 in words is "two trillion, one hundred twenty-three billion, three hundred twenty-two million, twenty-one thousand, one hundred eleven".