112202012221 has 4 divisors (see below), whose sum is σ = 120832936252. Its totient is φ = 103571088192.

The previous prime is 112202012191. The next prime is 112202012243. The reversal of 112202012221 is 122210202211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59140889721 + 53061122500 = 243189^2 + 230350^2 .

It is not a de Polignac number, because 112202012221 - 2¹³ = 112202004029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112202012195 and 112202012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112202012621) 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, 4315461996 + ... + 4315462021.

It is an arithmetic number, because the mean of its divisors is an integer number (30208234063).

Almost surely, 2^112202012221 is an apocalyptic number.

It is an amenable number.

112202012221 is a deficient number, since it is larger than the sum of its proper divisors (8630924031).

112202012221 is an equidigital number, since it uses as much as digits as its factorization.

112202012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8630924030.

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

Adding to 112202012221 its reverse (122210202211), we get a palindrome (234412214432).

The spelling of 112202012221 in words is "one hundred twelve billion, two hundred two million, twelve thousand, two hundred twenty-one".