102102110121102 has 96 divisors (see below), whose sum is σ = 253079206472448. Its totient is φ = 26888601662208.

The previous prime is 102102110121041. The next prime is 102102110121107. The reversal of 102102110121102 is 201121011201201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102110121107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5682543 + ... + 15378410.

It is an arithmetic number, because the mean of its divisors is an integer number (2636241734088).

Almost surely, 2^{102102110121102} is an apocalyptic number.

102102110121102 is an abundant number, since it is smaller than the sum of its proper divisors (150977096351346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102110121102 is a wasteful number, since it uses less digits than its factorization.

102102110121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21061674 (or 21061661 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102102110121102 its reverse (201121011201201), we get a palindrome (303223121322303).

The spelling of 102102110121102 in words is "one hundred two trillion, one hundred two billion, one hundred ten million, one hundred twenty-one thousand, one hundred two".