221001012110 has 8 divisors (see below), whose sum is σ = 397801821816. Its totient is φ = 88400404840.

The previous prime is 221001012107. The next prime is 221001012131. The reversal of 221001012110 is 11210100122.

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 = 221001012091 and 221001012100.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11050050596 + ... + 11050050615.

It is an arithmetic number, because the mean of its divisors is an integer number (49725227727).

Almost surely, 2^221001012110 is an apocalyptic number.

221001012110 is a deficient number, since it is larger than the sum of its proper divisors (176800809706).

221001012110 is a wasteful number, since it uses less digits than its factorization.

221001012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22100101218.

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

Adding to 221001012110 its reverse (11210100122), we get a palindrome (232211112232).

The spelling of 221001012110 in words is "two hundred twenty-one billion, one million, twelve thousand, one hundred ten".