102120201118 has 32 divisors (see below), whose sum is σ = 174734261856. Its totient is φ = 44342857728.

The previous prime is 102120201107. The next prime is 102120201119. The reversal of 102120201118 is 811102021201.

It is a junction number, because it is equal to n+sod(n) for n = 102120201095 and 102120201104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120201119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142830 + ... + 1228942.

It is an arithmetic number, because the mean of its divisors is an integer number (5460445683).

Almost surely, 2^102120201118 is an apocalyptic number.

102120201118 is a deficient number, since it is larger than the sum of its proper divisors (72614060738).

102120201118 is a wasteful number, since it uses less digits than its factorization.

102120201118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88828.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102120201118 its reverse (811102021201), we get a palindrome (913222222319).

The spelling of 102120201118 in words is "one hundred two billion, one hundred twenty million, two hundred one thousand, one hundred eighteen".