102180122 has 16 divisors (see below), whose sum is σ = 174474432. Its totient is φ = 44425920.

The previous prime is 102180121. The next prime is 102180139. The reversal of 102180122 is 221081201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102180122.

It is not an unprimeable number, because it can be changed into a prime (102180121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100463 + ... + 101474.

It is an arithmetic number, because the mean of its divisors is an integer number (10904652).

Almost surely, 2^102180122 is an apocalyptic number.

102180122 is a deficient number, since it is larger than the sum of its proper divisors (72294310).

102180122 is a wasteful number, since it uses less digits than its factorization.

102180122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201973.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 102180122 is about 10108.4183728217. The cubic root of 102180122 is about 467.5077402514.

The spelling of 102180122 in words is "one hundred two million, one hundred eighty thousand, one hundred twenty-two".