102121021020121 has 8 divisors (see below), whose sum is σ = 103142329337664. Its totient is φ = 101099912881200.

The previous prime is 102121021020103. The next prime is 102121021020169. The reversal of 102121021020121 is 121020120121201.

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 102121021020121 - 2⁹ = 102121021019609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121021020095 and 102121021020104.

It is not an unprimeable number, because it can be changed into a prime (102121021026121) 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, 49019151 + ... + 51059956.

It is an arithmetic number, because the mean of its divisors is an integer number (12892791167208).

Almost surely, 2^{102121021020121} is an apocalyptic number.

It is an amenable number.

102121021020121 is a deficient number, since it is larger than the sum of its proper divisors (1021308317543).

102121021020121 is a wasteful number, since it uses less digits than its factorization.

102121021020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100089311.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102121021020121 its reverse (121020120121201), we get a palindrome (223141141141322).

The spelling of 102121021020121 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, twenty thousand, one hundred twenty-one".