112121210221 has 8 divisors (see below), whose sum is σ = 117770857344. Its totient is φ = 106536130800.

The previous prime is 112121210063. The next prime is 112121210239. The reversal of 112121210221 is 122012121211.

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 112121210221 - 2¹⁵ = 112121177453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121210195 and 112121210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121213221) 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, 16138366 + ... + 16145311.

It is an arithmetic number, because the mean of its divisors is an integer number (14721357168).

Almost surely, 2^112121210221 is an apocalyptic number.

It is an amenable number.

112121210221 is a deficient number, since it is larger than the sum of its proper divisors (5649647123).

112121210221 is a wasteful number, since it uses less digits than its factorization.

112121210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32283851.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112121210221 its reverse (122012121211), we get a palindrome (234133331432).

The spelling of 112121210221 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty-one".