354512205500121 has 48 divisors (see below), whose sum is σ = 538191033082560. Its totient is φ = 224554407073920.

The previous prime is 354512205500119. The next prime is 354512205500143. The reversal of 354512205500121 is 121005502215453.

354512205500121 is a `hidden beast` number, since 3 + 5 + 4 + 5 + 1 + 2 + 20 + 5 + 500 + 121 = 666.

It is not a de Polignac number, because 354512205500121 - 2¹ = 354512205500119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354512205500171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6540691 + ... + 27419063.

It is an arithmetic number, because the mean of its divisors is an integer number (11212313189220).

Almost surely, 2^{354512205500121} is an apocalyptic number.

It is an amenable number.

354512205500121 is a deficient number, since it is larger than the sum of its proper divisors (183678827582439).

354512205500121 is a wasteful number, since it uses less digits than its factorization.

354512205500121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20879446 (or 20879443 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 354512205500121 its reverse (121005502215453), we get a palindrome (475517707715574).

The spelling of 354512205500121 in words is "three hundred fifty-four trillion, five hundred twelve billion, two hundred five million, five hundred thousand, one hundred twenty-one".