122122021223111 has 32 divisors (see below), whose sum is σ = 157158412766208. Its totient is φ = 92234737647360.

The previous prime is 122122021223039. The next prime is 122122021223117. The reversal of 122122021223111 is 111322120221221.

It is not a de Polignac number, because 122122021223111 - 2¹⁸ = 122122020960967 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122021223117) 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 31 ways as a sum of consecutive naturals, for example, 58389686 + ... + 60445011.

It is an arithmetic number, because the mean of its divisors is an integer number (4911200398944).

Almost surely, 2^{122122021223111} is an apocalyptic number.

122122021223111 is a deficient number, since it is larger than the sum of its proper divisors (35036391543097).

122122021223111 is a wasteful number, since it uses less digits than its factorization.

122122021223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118835231.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 122122021223111 its reverse (111322120221221), we get a palindrome (233444141444332).

The spelling of 122122021223111 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, twenty-one million, two hundred twenty-three thousand, one hundred eleven".