221120011210 has 48 divisors (see below), whose sum is σ = 463732629120. Its totient is φ = 75692322720.

The previous prime is 221120011207. The next prime is 221120011219. The reversal of 221120011210 is 12110021122.

It is not an unprimeable number, because it can be changed into a prime (221120011219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48390 + ... + 666769.

It is an arithmetic number, because the mean of its divisors is an integer number (9661096440).

Almost surely, 2^221120011210 is an apocalyptic number.

221120011210 is an abundant number, since it is smaller than the sum of its proper divisors (242612617910).

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

221120011210 is a wasteful number, since it uses less digits than its factorization.

221120011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715811 (or 715804 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221120011210 its reverse (12110021122), we get a palindrome (233230032332).

The spelling of 221120011210 in words is "two hundred twenty-one billion, one hundred twenty million, eleven thousand, two hundred ten".