215254411322051 has 8 divisors (see below), whose sum is σ = 219238993033200. Its totient is φ = 211304629451520.

The previous prime is 215254411322047. The next prime is 215254411322059. The reversal of 215254411322051 is 150223114452512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215254411322051 - 2² = 215254411322047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215254411321996 and 215254411322014.

It is not an unprimeable number, because it can be changed into a prime (215254411322059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8699947670 + ... + 8699972411.

It is an arithmetic number, because the mean of its divisors is an integer number (27404874129150).

Almost surely, 2^{215254411322051} is an apocalyptic number.

215254411322051 is a deficient number, since it is larger than the sum of its proper divisors (3984581711149).

215254411322051 is a wasteful number, since it uses less digits than its factorization.

215254411322051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17399920309.

The product of its (nonzero) digits is 96000, while the sum is 38.

Adding to 215254411322051 its reverse (150223114452512), we get a palindrome (365477525774563).

The spelling of 215254411322051 in words is "two hundred fifteen trillion, two hundred fifty-four billion, four hundred eleven million, three hundred twenty-two thousand, fifty-one".