112022021221 has 4 divisors (see below), whose sum is σ = 122205841344. Its totient is φ = 101838201100.

The previous prime is 112022021161. The next prime is 112022021291. The reversal of 112022021221 is 122120220211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 112022021221 - 2¹³ = 112022013029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112022021195 and 112022021204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112022021291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5091910045 + ... + 5091910066.

It is an arithmetic number, because the mean of its divisors is an integer number (30551460336).

Almost surely, 2^112022021221 is an apocalyptic number.

112022021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112022021221 is a deficient number, since it is larger than the sum of its proper divisors (10183820123).

112022021221 is a wasteful number, since it uses less digits than its factorization.

112022021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10183820122.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112022021221 its reverse (122120220211), we get a palindrome (234142241432).

The spelling of 112022021221 in words is "one hundred twelve billion, twenty-two million, twenty-one thousand, two hundred twenty-one".