102120110021111 has 8 divisors (see below), whose sum is σ = 125686289256864. Its totient is φ = 80798328807840.

The previous prime is 102120110021089. The next prime is 102120110021131. The reversal of 102120110021111 is 111120011021201.

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

It is not a de Polignac number, because 102120110021111 - 2²⁶ = 102120042912247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120110021131) 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, 561099505520 + ... + 561099505701.

It is an arithmetic number, because the mean of its divisors is an integer number (15710786157108).

Almost surely, 2^{102120110021111} is an apocalyptic number.

102120110021111 is a deficient number, since it is larger than the sum of its proper divisors (23566179235753).

102120110021111 is a wasteful number, since it uses less digits than its factorization.

102120110021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122199011241.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102120110021111 its reverse (111120011021201), we get a palindrome (213240121042312).

The spelling of 102120110021111 in words is "one hundred two trillion, one hundred twenty billion, one hundred ten million, twenty-one thousand, one hundred eleven".