122100012022121 has 8 divisors (see below), whose sum is σ = 139542955957824. Its totient is φ = 104657089355280.

The previous prime is 122100012022111. The next prime is 122100012022129. The reversal of 122100012022121 is 121220210001221.

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

It is a de Polignac number, because none of the positive numbers 2^k-122100012022121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122100012022121.

It is not an unprimeable number, because it can be changed into a prime (122100012022129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9880286 + ... + 18488376.

It is an arithmetic number, because the mean of its divisors is an integer number (17442869494728).

Almost surely, 2^{122100012022121} is an apocalyptic number.

It is an amenable number.

122100012022121 is a deficient number, since it is larger than the sum of its proper divisors (17442943935703).

122100012022121 is an equidigital number, since it uses as much as digits as its factorization.

122100012022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634431.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 122100012022121 its reverse (121220210001221), we get a palindrome (243320222023342).

The spelling of 122100012022121 in words is "one hundred twenty-two trillion, one hundred billion, twelve million, twenty-two thousand, one hundred twenty-one".