2211221023 has 8 divisors (see below), whose sum is σ = 2422777680. Its totient is φ = 2001420480.

The previous prime is 2211220997. The next prime is 2211221039. The reversal of 2211221023 is 3201221122.

It is a happy number.

2211221023 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 2211221023 - 2⁹ = 2211220511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211220988 and 2211221006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211221053) 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, 436390 + ... + 441427.

It is an arithmetic number, because the mean of its divisors is an integer number (302847210).

Almost surely, 2^2211221023 is an apocalyptic number.

2211221023 is a deficient number, since it is larger than the sum of its proper divisors (211556657).

2211221023 is a wasteful number, since it uses less digits than its factorization.

2211221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878057.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2211221023 is about 47023.6219681130. The cubic root of 2211221023 is about 1302.7989051245.

Adding to 2211221023 its reverse (3201221122), we get a palindrome (5412442145).

Subtracting 2211221023 from its reverse (3201221122), we obtain a palindrome (990000099).

The spelling of 2211221023 in words is "two billion, two hundred eleven million, two hundred twenty-one thousand, twenty-three".