213155224004 has 24 divisors (see below), whose sum is σ = 381297883008. Its totient is φ = 104217014880.

The previous prime is 213155223997. The next prime is 213155224069. The reversal of 213155224004 is 400422551312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293687 + ... + 715934.

It is an arithmetic number, because the mean of its divisors is an integer number (15887411792).

Almost surely, 2^213155224004 is an apocalyptic number.

It is an amenable number.

213155224004 is a deficient number, since it is larger than the sum of its proper divisors (168142659004).

213155224004 is a wasteful number, since it uses less digits than its factorization.

213155224004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010795 (or 1010793 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 213155224004 its reverse (400422551312), we get a palindrome (613577775316).

The spelling of 213155224004 in words is "two hundred thirteen billion, one hundred fifty-five million, two hundred twenty-four thousand, four".