112012212101221 has 8 divisors (see below), whose sum is σ = 118698940850904. Its totient is φ = 105336347251200.

The previous prime is 112012212101201. The next prime is 112012212101233. The reversal of 112012212101221 is 122101212210211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129996302500 + 111882215798721 = 360550^2 + 10577439^2 .

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 112012212101221 - 2⁷ = 112012212101093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012212101201) 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, 2715953680 + ... + 2715994921.

It is an arithmetic number, because the mean of its divisors is an integer number (14837367606363).

Almost surely, 2^{112012212101221} is an apocalyptic number.

It is an amenable number.

112012212101221 is a deficient number, since it is larger than the sum of its proper divisors (6686728749683).

112012212101221 is a wasteful number, since it uses less digits than its factorization.

112012212101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431949831.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112012212101221 its reverse (122101212210211), we get a palindrome (234113424311432).

The spelling of 112012212101221 in words is "one hundred twelve trillion, twelve billion, two hundred twelve million, one hundred one thousand, two hundred twenty-one".