102122020198 has 24 divisors (see below), whose sum is σ = 168392810880. Its totient is φ = 46414117200.

The previous prime is 102122020193. The next prime is 102122020199. The reversal of 102122020198 is 891020221201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102122020193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3156283 + ... + 3188473.

It is an arithmetic number, because the mean of its divisors is an integer number (7016367120).

Almost surely, 2^102122020198 is an apocalyptic number.

102122020198 is a deficient number, since it is larger than the sum of its proper divisors (66270790682).

102122020198 is a wasteful number, since it uses less digits than its factorization.

102122020198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45324 (or 45313 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 102122020198 its reverse (891020221201), we get a palindrome (993142241399).

The spelling of 102122020198 in words is "one hundred two billion, one hundred twenty-two million, twenty thousand, one hundred ninety-eight".