221100021010112 has 84 divisors (see below), whose sum is σ = 462399034151568. Its totient is φ = 104696515968000.

The previous prime is 221100021010097. The next prime is 221100021010133. The reversal of 221100021010112 is 211010120001122.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7653662 + ... + 22378082.

Almost surely, 2^{221100021010112} 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 221100021010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231199517075784).

221100021010112 is an abundant number, since it is smaller than the sum of its proper divisors (241299013141456).

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

221100021010112 is a wasteful number, since it uses less digits than its factorization.

221100021010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14724658 (or 14724547 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221100021010112 its reverse (211010120001122), we get a palindrome (432110141011234).

The spelling of 221100021010112 in words is "two hundred twenty-one trillion, one hundred billion, twenty-one million, ten thousand, one hundred twelve".