102121211100121 has 8 divisors (see below), whose sum is σ = 112829573389824. Its totient is φ = 91935207946560.

The previous prime is 102121211100119. The next prime is 102121211100127. The reversal of 102121211100121 is 121001112121201.

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

It is a cyclic number.

It is not a de Polignac number, because 102121211100121 - 2¹ = 102121211100119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121211100095 and 102121211100104.

It is not an unprimeable number, because it can be changed into a prime (102121211100127) 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, 130589783625 + ... + 130589784406.

It is an arithmetic number, because the mean of its divisors is an integer number (14103696673728).

Almost surely, 2^{102121211100121} is an apocalyptic number.

It is an amenable number.

102121211100121 is a deficient number, since it is larger than the sum of its proper divisors (10708362289703).

102121211100121 is a wasteful number, since it uses less digits than its factorization.

102121211100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261179568071.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102121211100121 its reverse (121001112121201), we get a palindrome (223122323221322).

The spelling of 102121211100121 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred thousand, one hundred twenty-one".