221010010012 has 48 divisors (see below), whose sum is σ = 437044053600. Its totient is φ = 96869077760.

The previous prime is 221010009989. The next prime is 221010010019. The reversal of 221010010012 is 210010010122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010010019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874314 + ... + 1098382.

It is an arithmetic number, because the mean of its divisors is an integer number (9105084450).

Almost surely, 2^221010010012 is an apocalyptic number.

221010010012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221010010012 is a deficient number, since it is larger than the sum of its proper divisors (216034043588).

221010010012 is a wasteful number, since it uses less digits than its factorization.

221010010012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224886 (or 224884 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 221010010012 its reverse (210010010122), we get a palindrome (431020020134).

The spelling of 221010010012 in words is "two hundred twenty-one billion, ten million, ten thousand, twelve".