102102122112121 has 8 divisors (see below), whose sum is σ = 106544823767424. Its totient is φ = 97659710369760.

The previous prime is 102102122112097. The next prime is 102102122112143. The reversal of 102102122112121 is 121211221201201.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102102122112121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102102122116121) 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, 71758396 + ... + 73167421.

It is an arithmetic number, because the mean of its divisors is an integer number (13318102970928).

Almost surely, 2^{102102122112121} is an apocalyptic number.

It is an amenable number.

102102122112121 is a deficient number, since it is larger than the sum of its proper divisors (4442701655303).

102102122112121 is a wasteful number, since it uses less digits than its factorization.

102102122112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144956471.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102102122112121 its reverse (121211221201201), we get a palindrome (223313343313322).

The spelling of 102102122112121 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".