30000215212555 has 16 divisors (see below), whose sum is σ = 43563337721280. Its totient is φ = 19361483430912.

The previous prime is 30000215212531. The next prime is 30000215212577. The reversal of 30000215212555 is 55521251200003.

It is not a de Polignac number, because 30000215212555 - 2⁹ = 30000215212043 is a prime.

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, 25210264290 + ... + 25210265479.

It is an arithmetic number, because the mean of its divisors is an integer number (2722708607580).

Almost surely, 2^{30000215212555} is an apocalyptic number.

30000215212555 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30000215212555 is a deficient number, since it is larger than the sum of its proper divisors (13563122508725).

30000215212555 is a wasteful number, since it uses less digits than its factorization.

30000215212555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50420529798.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 30000215212555 its reverse (55521251200003), we get a palindrome (85521466412558).

The spelling of 30000215212555 in words is "thirty trillion, two hundred fifteen million, two hundred twelve thousand, five hundred fifty-five".