102101221110111 has 4 divisors (see below), whose sum is σ = 136134961480152. Its totient is φ = 68067480740072.

The previous prime is 102101221110107. The next prime is 102101221110131. The reversal of 102101221110111 is 111011122101201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102101221110111 - 2² = 102101221110107 is a prime.

It is a super-2 number, since 2×102101221110111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101221110131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17016870185016 + ... + 17016870185021.

It is an arithmetic number, because the mean of its divisors is an integer number (34033740370038).

Almost surely, 2^{102101221110111} is an apocalyptic number.

102101221110111 is a deficient number, since it is larger than the sum of its proper divisors (34033740370041).

102101221110111 is an equidigital number, since it uses as much as digits as its factorization.

102101221110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34033740370040.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102101221110111 its reverse (111011122101201), we get a palindrome (213112343211312).

The spelling of 102101221110111 in words is "one hundred two trillion, one hundred one billion, two hundred twenty-one million, one hundred ten thousand, one hundred eleven".