122102021211111 has 10 divisors (see below), whose sum is σ = 182399315636472. Its totient is φ = 81401347474020.

The previous prime is 122102021211103. The next prime is 122102021211127. The reversal of 122102021211111 is 111112120201221.

It is a happy number.

It is not a de Polignac number, because 122102021211111 - 2³ = 122102021211103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102021210111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 753716180235 + ... + 753716180396.

Almost surely, 2^{122102021211111} is an apocalyptic number.

122102021211111 is a deficient number, since it is larger than the sum of its proper divisors (60297294425361).

122102021211111 is an equidigital number, since it uses as much as digits as its factorization.

122102021211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507432360643 (or 1507432360634 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122102021211111 its reverse (111112120201221), we get a palindrome (233214141412332).

The spelling of 122102021211111 in words is "one hundred twenty-two trillion, one hundred two billion, twenty-one million, two hundred eleven thousand, one hundred eleven".