122011111010121 has 8 divisors (see below), whose sum is σ = 163048708168800. Its totient is φ = 81157127262432.

The previous prime is 122011111010111. The next prime is 122011111010161. The reversal of 122011111010121 is 121010111110221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122011111010121 - 2⁹ = 122011111009609 is a prime.

It is a super-2 number, since 2×122011111010121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122011111010121.

It is not an unprimeable number, because it can be changed into a prime (122011111010111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45903351196 + ... + 45903353853.

It is an arithmetic number, because the mean of its divisors is an integer number (20381088521100).

Almost surely, 2^{122011111010121} is an apocalyptic number.

It is an amenable number.

122011111010121 is a deficient number, since it is larger than the sum of its proper divisors (41037597158679).

122011111010121 is an equidigital number, since it uses as much as digits as its factorization.

122011111010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91806705495.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 122011111010121 its reverse (121010111110221), we get a palindrome (243021222120342).

The spelling of 122011111010121 in words is "one hundred twenty-two trillion, eleven billion, one hundred eleven million, ten thousand, one hundred twenty-one".