210121242101242 has 16 divisors (see below), whose sum is σ = 321135836048064. Its totient is φ = 103089989268000.

The previous prime is 210121242101231. The next prime is 210121242101339. The reversal of 210121242101242 is 242101242121012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3506432259 + ... + 3506492182.

It is an arithmetic number, because the mean of its divisors is an integer number (20070989753004).

Almost surely, 2^{210121242101242} is an apocalyptic number.

210121242101242 is a deficient number, since it is larger than the sum of its proper divisors (111014593946822).

210121242101242 is a wasteful number, since it uses less digits than its factorization.

210121242101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012924725.

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 210121242101242 its reverse (242101242121012), we get a palindrome (452222484222254).

The spelling of 210121242101242 in words is "two hundred ten trillion, one hundred twenty-one billion, two hundred forty-two million, one hundred one thousand, two hundred forty-two".