121222100232111 has 16 divisors (see below), whose sum is σ = 161834624116704. Its totient is φ = 80712157878144.

The previous prime is 121222100232049. The next prime is 121222100232169. The reversal of 121222100232111 is 111232001222121.

It is not a de Polignac number, because 121222100232111 - 2¹⁰ = 121222100231087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222100230111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182563365 + ... + 183226161.

It is an arithmetic number, because the mean of its divisors is an integer number (10114664007294).

Almost surely, 2^{121222100232111} is an apocalyptic number.

121222100232111 is a deficient number, since it is larger than the sum of its proper divisors (40612523884593).

121222100232111 is an equidigital number, since it uses as much as digits as its factorization.

121222100232111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740090.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121222100232111 its reverse (111232001222121), we get a palindrome (232454101454232).

The spelling of 121222100232111 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred million, two hundred thirty-two thousand, one hundred eleven".