221120011010 has 8 divisors (see below), whose sum is σ = 398016019836. Its totient is φ = 88448004400.

The previous prime is 221120011009. The next prime is 221120011019. The reversal of 221120011010 is 10110021122.

It can be written as a sum of positive squares in 2 ways, for example, as 206135068441 + 14984942569 = 454021^2 + 122413^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 221120010982 and 221120011000.

It is not an unprimeable number, because it can be changed into a prime (221120011019) 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, 11056000541 + ... + 11056000560.

Almost surely, 2^221120011010 is an apocalyptic number.

221120011010 is a deficient number, since it is larger than the sum of its proper divisors (176896008826).

221120011010 is a wasteful number, since it uses less digits than its factorization.

221120011010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112001108.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 221120011010 its reverse (10110021122), we get a palindrome (231230032132).

The spelling of 221120011010 in words is "two hundred twenty-one billion, one hundred twenty million, eleven thousand, ten".