221223312120010 has 8 divisors (see below), whose sum is σ = 398201961816036. Its totient is φ = 88489324848000.

The previous prime is 221223312120007. The next prime is 221223312120011. The reversal of 221223312120010 is 10021213322122.

221223312120010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 219338795428281 + 1884516691729 = 14810091^2 + 1372777^2 .

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

It is not an unprimeable number, because it can be changed into a prime (221223312120011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11061165605991 + ... + 11061165606010.

Almost surely, 2^{221223312120010} is an apocalyptic number.

221223312120010 is a deficient number, since it is larger than the sum of its proper divisors (176978649696026).

221223312120010 is a wasteful number, since it uses less digits than its factorization.

221223312120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22122331212008.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221223312120010 its reverse (10021213322122), we get a palindrome (231244525442132).

The spelling of 221223312120010 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, three hundred twelve million, one hundred twenty thousand, ten".