2221120031 has 8 divisors (see below), whose sum is σ = 2442869184. Its totient is φ = 2006641440.

The previous prime is 2221120001. The next prime is 2221120043. The reversal of 2221120031 is 1300211222.

It is a happy number.

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-2221120031 is a prime.

It is a super-2 number, since 2×2221120031² = 9866748384218881922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221119988 and 2221120015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221120001) 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, 1817000 + ... + 1818221.

It is an arithmetic number, because the mean of its divisors is an integer number (305358648).

Almost surely, 2^2221120031 is an apocalyptic number.

2221120031 is a deficient number, since it is larger than the sum of its proper divisors (221749153).

2221120031 is a wasteful number, since it uses less digits than its factorization.

2221120031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635281.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2221120031 is about 47128.7601258510. The cubic root of 2221120031 is about 1304.7400980732.

Adding to 2221120031 its reverse (1300211222), we get a palindrome (3521331253).

The spelling of 2221120031 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, thirty-one".