215401305120001 has 64 divisors (see below), whose sum is σ = 295414517260800. Its totient is φ = 154775389870080.

The previous prime is 215401305119951. The next prime is 215401305120013. The reversal of 215401305120001 is 100021503104512.

It is not a de Polignac number, because 215401305120001 - 2⁷ = 215401305119873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215401305100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45673405 + ... + 50168341.

It is an arithmetic number, because the mean of its divisors is an integer number (4615851832200).

Almost surely, 2^{215401305120001} is an apocalyptic number.

It is an amenable number.

215401305120001 is a deficient number, since it is larger than the sum of its proper divisors (80013212140799).

215401305120001 is a wasteful number, since it uses less digits than its factorization.

215401305120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495959 (or 4495945 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 215401305120001 its reverse (100021503104512), we get a palindrome (315422808224513).

The spelling of 215401305120001 in words is "two hundred fifteen trillion, four hundred one billion, three hundred five million, one hundred twenty thousand, one".