4213223123021 has 16 divisors (see below), whose sum is σ = 4617354188160. Its totient is φ = 3812618061120.

The previous prime is 4213223122993. The next prime is 4213223123041. The reversal of 4213223123021 is 1203213223124.

It is not a de Polignac number, because 4213223123021 - 2¹⁴ = 4213223106637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213223123041) 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, 11131736 + ... + 11503998.

It is an arithmetic number, because the mean of its divisors is an integer number (288584636760).

Almost surely, 2^{4213223123021} is an apocalyptic number.

It is an amenable number.

4213223123021 is a deficient number, since it is larger than the sum of its proper divisors (404131065139).

4213223123021 is a wasteful number, since it uses less digits than its factorization.

4213223123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376996.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 4213223123021 its reverse (1203213223124), we get a palindrome (5416436346145).

The spelling of 4213223123021 in words is "four trillion, two hundred thirteen billion, two hundred twenty-three million, one hundred twenty-three thousand, twenty-one".