102122120122121 has 4 divisors (see below), whose sum is σ = 111405949224144. Its totient is φ = 92838291020100.

The previous prime is 102122120122117. The next prime is 102122120122157. The reversal of 102122120122121 is 121221021221201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102122120122121 - 2² = 102122120122117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102122120122093 and 102122120122102.

It is not an unprimeable number, because it can be changed into a prime (102122120122921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4641914550995 + ... + 4641914551016.

It is an arithmetic number, because the mean of its divisors is an integer number (27851487306036).

Almost surely, 2^{102122120122121} is an apocalyptic number.

102122120122121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102122120122121 is a deficient number, since it is larger than the sum of its proper divisors (9283829102023).

102122120122121 is an equidigital number, since it uses as much as digits as its factorization.

102122120122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283829102022.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102122120122121 its reverse (121221021221201), we get a palindrome (223343141343322).

The spelling of 102122120122121 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".