102121121012111 has 8 divisors (see below), whose sum is σ = 106638781707360. Its totient is φ = 97609927979872.

The previous prime is 102121121012081. The next prime is 102121121012137. The reversal of 102121121012111 is 111210121121201.

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 102121121012111 - 2¹⁴ = 102121120995727 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 102121121012111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121121012311) 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, 1616883476 + ... + 1616946633.

It is an arithmetic number, because the mean of its divisors is an integer number (13329847713420).

Almost surely, 2^{102121121012111} is an apocalyptic number.

102121121012111 is a deficient number, since it is larger than the sum of its proper divisors (4517660695249).

102121121012111 is a wasteful number, since it uses less digits than its factorization.

102121121012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233831505.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102121121012111 its reverse (111210121121201), we get a palindrome (213331242133312).

The spelling of 102121121012111 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, twelve thousand, one hundred eleven".