21202202220112 has 20 divisors (see below), whose sum is σ = 41102781032416. Its totient is φ = 10595032921440.

The previous prime is 21202202220109. The next prime is 21202202220137. The reversal of 21202202220112 is 21102220220212.

It is a super-3 number, since 3×21202202220112³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21202202220112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379232964 + ... + 379288867.

Almost surely, 2^{21202202220112} is an apocalyptic number.

It is an amenable number.

21202202220112 is a deficient number, since it is larger than the sum of its proper divisors (19900578812304).

21202202220112 is a wasteful number, since it uses less digits than its factorization.

21202202220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758523586 (or 758523580 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21202202220112 its reverse (21102220220212), we get a palindrome (42304422440324).

The spelling of 21202202220112 in words is "twenty-one trillion, two hundred two billion, two hundred two million, two hundred twenty thousand, one hundred twelve".