102121121101111 has 8 divisors (see below), whose sum is σ = 116710141845920. Its totient is φ = 87532172646048.

The previous prime is 102121121101091. The next prime is 102121121101141. The reversal of 102121121101111 is 111101121121201.

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 102121121101111 - 2²⁵ = 102121087546679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121121101141) 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, 15010716 + ... + 20725921.

It is an arithmetic number, because the mean of its divisors is an integer number (14588767730740).

Almost surely, 2^{102121121101111} is an apocalyptic number.

102121121101111 is a deficient number, since it is larger than the sum of its proper divisors (14589020744809).

102121121101111 is an equidigital number, since it uses as much as digits as its factorization.

102121121101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36144873.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 102121121101111 its reverse (111101121121201), we get a palindrome (213222242222312).

The spelling of 102121121101111 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred one thousand, one hundred eleven".