221001012223030 has 32 divisors (see below), whose sum is σ = 429152228432928. Its totient is φ = 81457465881600.

The previous prime is 221001012223021. The next prime is 221001012223049. The reversal of 221001012223030 is 30322210100122.

It is a junction number, because it is equal to n+sod(n) for n = 221001012222989 and 221001012223007.

It is a congruent number.

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, 1488549051 + ... + 1488697510.

It is an arithmetic number, because the mean of its divisors is an integer number (13411007138529).

Almost surely, 2^{221001012223030} is an apocalyptic number.

221001012223030 is a deficient number, since it is larger than the sum of its proper divisors (208151216209898).

221001012223030 is a wasteful number, since it uses less digits than its factorization.

221001012223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977247152.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 221001012223030 its reverse (30322210100122), we get a palindrome (251323222323152).

The spelling of 221001012223030 in words is "two hundred twenty-one trillion, one billion, twelve million, two hundred twenty-three thousand, thirty".