121210610242 has 16 divisors (see below), whose sum is σ = 182688438240. Its totient is φ = 60314673888.

The previous prime is 121210610237. The next prime is 121210610251. The reversal of 121210610242 is 242016012121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1137109 + ... + 1239127.

It is an arithmetic number, because the mean of its divisors is an integer number (11418027390).

Almost surely, 2^121210610242 is an apocalyptic number.

121210610242 is a deficient number, since it is larger than the sum of its proper divisors (61477827998).

121210610242 is a wasteful number, since it uses less digits than its factorization.

121210610242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104865.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 121210610242 its reverse (242016012121), we get a palindrome (363226622363).

The spelling of 121210610242 in words is "one hundred twenty-one billion, two hundred ten million, six hundred ten thousand, two hundred forty-two".