1112303021221 has 32 divisors (see below), whose sum is σ = 1331505133056. Its totient is φ = 909347712000.

The previous prime is 1112303021213. The next prime is 1112303021231. The reversal of 1112303021221 is 1221203032111.

It is not a de Polignac number, because 1112303021221 - 2³ = 1112303021213 is a prime.

It is a super-2 number, since 2×1112303021221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112303021231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4144176 + ... + 4404406.

It is an arithmetic number, because the mean of its divisors is an integer number (41609535408).

Almost surely, 2^{1112303021221} is an apocalyptic number.

It is an amenable number.

1112303021221 is a deficient number, since it is larger than the sum of its proper divisors (219202111835).

1112303021221 is a wasteful number, since it uses less digits than its factorization.

1112303021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260613.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1112303021221 its reverse (1221203032111), we get a palindrome (2333506053332).

The spelling of 1112303021221 in words is "one trillion, one hundred twelve billion, three hundred three million, twenty-one thousand, two hundred twenty-one".