112201102212121 has 24 divisors (see below), whose sum is σ = 127895308175520. Its totient is φ = 98115407260416.

The previous prime is 112201102212091. The next prime is 112201102212131. The reversal of 112201102212121 is 121212201102211.

It is a happy number.

It is not a de Polignac number, because 112201102212121 - 2³¹ = 112198954728473 is a prime.

It is a super-2 number, since 2×112201102212121² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112201102212131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84474270 + ... + 85792216.

It is an arithmetic number, because the mean of its divisors is an integer number (5328971173980).

Almost surely, 2^{112201102212121} is an apocalyptic number.

It is an amenable number.

112201102212121 is a deficient number, since it is larger than the sum of its proper divisors (15694205963399).

112201102212121 is a wasteful number, since it uses less digits than its factorization.

112201102212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344505 (or 1344492 counting only the distinct ones).

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

Adding to 112201102212121 its reverse (121212201102211), we get a palindrome (233413303314332).

The spelling of 112201102212121 in words is "one hundred twelve trillion, two hundred one billion, one hundred two million, two hundred twelve thousand, one hundred twenty-one".