122021122012111 has 12 divisors (see below), whose sum is σ = 141943859408640. Its totient is φ = 104588854110720.

The previous prime is 122021122012081. The next prime is 122021122012117. The reversal of 122021122012111 is 111210221120221.

It is a happy number.

It is not a de Polignac number, because 122021122012111 - 2¹³ = 122021122003919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122021122012117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385551 + ... + 15626608.

It is an arithmetic number, because the mean of its divisors is an integer number (11828654950720).

Almost surely, 2^{122021122012111} is an apocalyptic number.

122021122012111 is a deficient number, since it is larger than the sum of its proper divisors (19922737396529).

122021122012111 is a wasteful number, since it uses less digits than its factorization.

122021122012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16167694 (or 16167687 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122021122012111 its reverse (111210221120221), we get a palindrome (233231343132332).

The spelling of 122021122012111 in words is "one hundred twenty-two trillion, twenty-one billion, one hundred twenty-two million, twelve thousand, one hundred eleven".