102142122 has 16 divisors (see below), whose sum is σ = 204459552. Its totient is φ = 34018160.

The previous prime is 102142097. The next prime is 102142133. The reversal of 102142122 is 221241201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997 + ... + 14327.

It is an arithmetic number, because the mean of its divisors is an integer number (12778722).

Almost surely, 2^102142122 is an apocalyptic number.

102142122 is an abundant number, since it is smaller than the sum of its proper divisors (102317430).

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

102142122 is a wasteful number, since it uses less digits than its factorization.

102142122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14613.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102142122 is about 10106.5385765850. The cubic root of 102142122 is about 467.4497788903.

Adding to 102142122 its reverse (221241201), we get a palindrome (323383323).

The spelling of 102142122 in words is "one hundred two million, one hundred forty-two thousand, one hundred twenty-two".