102221040194 has 48 divisors (see below), whose sum is σ = 189910080000. Its totient is φ = 40405547520.

The previous prime is 102221040191. The next prime is 102221040211. The reversal of 102221040194 is 491040122201.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (102221040191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2937839 + ... + 2972429.

It is an arithmetic number, because the mean of its divisors is an integer number (3956460000).

Almost surely, 2^102221040194 is an apocalyptic number.

102221040194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102221040194 is a deficient number, since it is larger than the sum of its proper divisors (87689039806).

102221040194 is a wasteful number, since it uses less digits than its factorization.

102221040194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35875 (or 35862 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 102221040194 its reverse (491040122201), we get a palindrome (593261162395).

The spelling of 102221040194 in words is "one hundred two billion, two hundred twenty-one million, forty thousand, one hundred ninety-four".