221110210412 has 96 divisors (see below), whose sum is σ = 480819397632. Its totient is φ = 86634406656.

The previous prime is 221110210411. The next prime is 221110210427. The reversal of 221110210412 is 214012011122.

It is not an unprimeable number, because it can be changed into a prime (221110210411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17196578 + ... + 17209430.

It is an arithmetic number, because the mean of its divisors is an integer number (5008535392).

Almost surely, 2^221110210412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221110210412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240409698816).

221110210412 is an abundant number, since it is smaller than the sum of its proper divisors (259709187220).

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

221110210412 is a wasteful number, since it uses less digits than its factorization.

221110210412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327 (or 13325 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 221110210412 its reverse (214012011122), we get a palindrome (435122221534).

The spelling of 221110210412 in words is "two hundred twenty-one billion, one hundred ten million, two hundred ten thousand, four hundred twelve".