2221242444212 has 36 divisors (see below), whose sum is σ = 4458447846048. Its totient is φ = 965757579600.

The previous prime is 2221242444163. The next prime is 2221242444227. The reversal of 2221242444212 is 2124442421222.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 99757214 + ... + 99779477.

Almost surely, 2^{2221242444212} is an apocalyptic number.

2221242444212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221242444212 is an abundant number, since it is smaller than the sum of its proper divisors (2237205401836).

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

2221242444212 is a wasteful number, since it uses less digits than its factorization.

2221242444212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199536740 (or 199536727 counting only the distinct ones).

The product of its digits is 32768, while the sum is 32.

Adding to 2221242444212 its reverse (2124442421222), we get a palindrome (4345684865434).

It can be divided in two parts, 22212 and 42444212, that added together give a palindrome (42466424).

The spelling of 2221242444212 in words is "two trillion, two hundred twenty-one billion, two hundred forty-two million, four hundred forty-four thousand, two hundred twelve".