42023000222021 has 24 divisors (see below), whose sum is σ = 53110076030424. Its totient is φ = 32954728504320.

The previous prime is 42023000221997. The next prime is 42023000222111. The reversal of 42023000222021 is 12022200032024.

It can be written as a sum of positive squares in 4 ways, for example, as 1416933122500 + 40606067099521 = 1190350^2 + 6372289^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42023000222021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42023000221984 and 42023000222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42023000222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291831440 + ... + 291975401.

It is an arithmetic number, because the mean of its divisors is an integer number (2212919834601).

Almost surely, 2^{42023000222021} is an apocalyptic number.

It is an amenable number.

42023000222021 is a deficient number, since it is larger than the sum of its proper divisors (11087075808403).

42023000222021 is a wasteful number, since it uses less digits than its factorization.

42023000222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583806981 (or 583806974 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 42023000222021 its reverse (12022200032024), we get a palindrome (54045200254045).

The spelling of 42023000222021 in words is "forty-two trillion, twenty-three billion, two hundred twenty-two thousand, twenty-one".