124221232420111 has 32 divisors (see below), whose sum is σ = 130159583963136. Its totient is φ = 118415658240000.

The previous prime is 124221232420069. The next prime is 124221232420141. The reversal of 124221232420111 is 111024232122421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 124221232420111 - 2¹⁷ = 124221232289039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124221232420111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124221232420141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1773262036 + ... + 1773332086.

It is an arithmetic number, because the mean of its divisors is an integer number (4067486998848).

Almost surely, 2^{124221232420111} is an apocalyptic number.

124221232420111 is a deficient number, since it is larger than the sum of its proper divisors (5938351543025).

124221232420111 is a wasteful number, since it uses less digits than its factorization.

124221232420111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72943.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 124221232420111 its reverse (111024232122421), we get a palindrome (235245464542532).

The spelling of 124221232420111 in words is "one hundred twenty-four trillion, two hundred twenty-one billion, two hundred thirty-two million, four hundred twenty thousand, one hundred eleven".