122102542 has 16 divisors (see below), whose sum is σ = 190219392. Its totient is φ = 58738680.

The previous prime is 122102527. The next prime is 122102543. The reversal of 122102542 is 245201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122102543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834 + ... + 16357.

It is an arithmetic number, because the mean of its divisors is an integer number (11888712).

Almost surely, 2^122102542 is an apocalyptic number.

122102542 is a deficient number, since it is larger than the sum of its proper divisors (68116850).

122102542 is a wasteful number, since it uses less digits than its factorization.

122102542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21303.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 122102542 is about 11050.0019004523. The cubic root of 122102542 is about 496.1064824064.

Adding to 122102542 its reverse (245201221), we get a palindrome (367303763).

The spelling of 122102542 in words is "one hundred twenty-two million, one hundred two thousand, five hundred forty-two".