6213223121 has 16 divisors (see below), whose sum is σ = 7522162560. Its totient is φ = 5009921280.

The previous prime is 6213223109. The next prime is 6213223147. The reversal of 6213223121 is 1213223126.

It is not a de Polignac number, because 6213223121 - 2⁶ = 6213223057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6213223171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258506 + ... + 281516.

It is an arithmetic number, because the mean of its divisors is an integer number (470135160).

Almost surely, 2^6213223121 is an apocalyptic number.

It is an amenable number.

6213223121 is a deficient number, since it is larger than the sum of its proper divisors (1308939439).

6213223121 is a wasteful number, since it uses less digits than its factorization.

6213223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25304.

The product of its digits is 864, while the sum is 23.

The square root of 6213223121 is about 78824.0009197706. Note that the first 3 decimals coincide. The cubic root of 6213223121 is about 1838.3956479354.

Adding to 6213223121 its reverse (1213223126), we get a palindrome (7426446247).

The spelling of 6213223121 in words is "six billion, two hundred thirteen million, two hundred twenty-three thousand, one hundred twenty-one".