124202144220401 has 16 divisors (see below), whose sum is σ = 141746995759824. Its totient is φ = 107810539536384.

The previous prime is 124202144220317. The next prime is 124202144220433. The reversal of 124202144220401 is 104022441202421.

It can be written as a sum of positive squares in 8 ways, for example, as 6466645561600 + 117735498658801 = 2542960^2 + 10850599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124202144220401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124202144220461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243457526 + ... + 243967151.

It is an arithmetic number, because the mean of its divisors is an integer number (8859187234989).

Almost surely, 2^{124202144220401} is an apocalyptic number.

It is an amenable number.

124202144220401 is a deficient number, since it is larger than the sum of its proper divisors (17544851539423).

124202144220401 is a wasteful number, since it uses less digits than its factorization.

124202144220401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487425860.

The product of its (nonzero) digits is 8192, while the sum is 29.

Adding to 124202144220401 its reverse (104022441202421), we get a palindrome (228224585422822).

The spelling of 124202144220401 in words is "one hundred twenty-four trillion, two hundred two billion, one hundred forty-four million, two hundred twenty thousand, four hundred one".