102021211102121 has 8 divisors (see below), whose sum is σ = 106709782726464. Its totient is φ = 97353711710640.

The previous prime is 102021211102061. The next prime is 102021211102163. The reversal of 102021211102121 is 121201112120201.

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-102021211102121 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 102021211102121.

It is not an unprimeable number, because it can be changed into a prime (102021211102021) 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, 5268048311 + ... + 5268067676.

It is an arithmetic number, because the mean of its divisors is an integer number (13338722840808).

Almost surely, 2^{102021211102121} is an apocalyptic number.

It is an amenable number.

102021211102121 is a deficient number, since it is larger than the sum of its proper divisors (4688571624343).

102021211102121 is a wasteful number, since it uses less digits than its factorization.

102021211102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10536116431.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102021211102121 its reverse (121201112120201), we get a palindrome (223222323222322).

The spelling of 102021211102121 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred two thousand, one hundred twenty-one".