221110322010 has 32 divisors (see below), whose sum is σ = 561880348992. Its totient is φ = 55494355200.

The previous prime is 221110321979. The next prime is 221110322021. The reversal of 221110322010 is 10223011122.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 216774316 + ... + 216775335.

It is an arithmetic number, because the mean of its divisors is an integer number (17558760906).

Almost surely, 2^221110322010 is an apocalyptic number.

221110322010 is an abundant number, since it is smaller than the sum of its proper divisors (340770026982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221110322010 is a wasteful number, since it uses less digits than its factorization.

221110322010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433549678.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221110322010 its reverse (10223011122), we get a palindrome (231333333132).

The spelling of 221110322010 in words is "two hundred twenty-one billion, one hundred ten million, three hundred twenty-two thousand, ten".