2221012031 has 8 divisors (see below), whose sum is σ = 2541740160. Its totient is φ = 1901144088.

The previous prime is 2221011983. The next prime is 2221012033. The reversal of 2221012031 is 1302101222.

It is a happy number.

2221012031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2221012031 - 2⁶ = 2221011967 is a prime.

It is a super-2 number, since 2×2221012031² = 9865788883693489922, 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 = 2221011997 and 2221012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221012033) 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, 209501 + ... + 219846.

It is an arithmetic number, because the mean of its divisors is an integer number (317717520).

Almost surely, 2^2221012031 is an apocalyptic number.

2221012031 is a deficient number, since it is larger than the sum of its proper divisors (320728129).

2221012031 is an equidigital number, since it uses as much as digits as its factorization.

2221012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430093.

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

The square root of 2221012031 is about 47127.6143147518. The cubic root of 2221012031 is about 1304.7189504521.

Adding to 2221012031 its reverse (1302101222), we get a palindrome (3523113253).

The spelling of 2221012031 in words is "two billion, two hundred twenty-one million, twelve thousand, thirty-one".