20121241034242 has 32 divisors (see below), whose sum is σ = 31012920852480. Its totient is φ = 9787967526480.

The previous prime is 20121241034221. The next prime is 20121241034263. The reversal of 20121241034242 is 24243014212102.

It is an interprime number because it is at equal distance from previous prime (20121241034221) and next prime (20121241034263).

It is a self number, because there is not a number n which added to its sum of digits gives 20121241034242.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3019617 + ... + 7025707.

It is an arithmetic number, because the mean of its divisors is an integer number (969153776640).

Almost surely, 2^{20121241034242} is an apocalyptic number.

20121241034242 is a deficient number, since it is larger than the sum of its proper divisors (10891679818238).

20121241034242 is a wasteful number, since it uses less digits than its factorization.

20121241034242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006638.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 20121241034242 its reverse (24243014212102), we get a palindrome (44364255246344).

The spelling of 20121241034242 in words is "twenty trillion, one hundred twenty-one billion, two hundred forty-one million, thirty-four thousand, two hundred forty-two".