20112022122221 has 8 divisors (see below), whose sum is σ = 20160310857120. Its totient is φ = 20063788482672.

The previous prime is 20112022122217. The next prime is 20112022122233. The reversal of 20112022122221 is 12222122021102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20112022122221 - 2² = 20112022122217 is a prime.

It is a super-3 number, since 3×20112022122221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20112022122193 and 20112022122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112022122251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13042835 + ... + 14503088.

It is an arithmetic number, because the mean of its divisors is an integer number (2520038857140).

Almost surely, 2^{20112022122221} is an apocalyptic number.

It is an amenable number.

20112022122221 is a deficient number, since it is larger than the sum of its proper divisors (48288734899).

20112022122221 is a wasteful number, since it uses less digits than its factorization.

20112022122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27547675.

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

Adding to 20112022122221 its reverse (12222122021102), we get a palindrome (32334144143323).

The spelling of 20112022122221 in words is "twenty trillion, one hundred twelve billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".