21202222120112 has 40 divisors (see below), whose sum is σ = 44816664859392. Its totient is φ = 9636754939200.

The previous prime is 21202222120091. The next prime is 21202222120141. The reversal of 21202222120112 is 21102122220212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112564 + ... + 6606227.

Almost surely, 2^{21202222120112} is an apocalyptic number.

21202222120112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21202222120112 is an abundant number, since it is smaller than the sum of its proper divisors (23614442739280).

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

21202222120112 is a wasteful number, since it uses less digits than its factorization.

21202222120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7734417 (or 7734411 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 21202222120112 its reverse (21102122220212), we get a palindrome (42304344340324).

The spelling of 21202222120112 in words is "twenty-one trillion, two hundred two billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twelve".