112011012221 has 8 divisors (see below), whose sum is σ = 112223868600. Its totient is φ = 111798213120.

The previous prime is 112011012209. The next prime is 112011012259. The reversal of 112011012221 is 122210110211.

It can be written as a sum of positive squares in 4 ways, for example, as 13985664121 + 98025348100 = 118261^2 + 313090^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112011012221 is a prime.

It is a super-2 number, since 2×112011012221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112011012196 and 112011012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112011012121) 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, 7777295 + ... + 7791683.

It is an arithmetic number, because the mean of its divisors is an integer number (14027983575).

Almost surely, 2^112011012221 is an apocalyptic number.

It is an amenable number.

112011012221 is a deficient number, since it is larger than the sum of its proper divisors (212856379).

112011012221 is a wasteful number, since it uses less digits than its factorization.

112011012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28639.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112011012221 its reverse (122210110211), we get a palindrome (234221122432).

The spelling of 112011012221 in words is "one hundred twelve billion, eleven million, twelve thousand, two hundred twenty-one".