4142213021 has 2 divisors, whose sum is σ = 4142213022. Its totient is φ = 4142213020.

The previous prime is 4142213017. The next prime is 4142213063. The reversal of 4142213021 is 1203122414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2554190521 + 1588022500 = 50539^2 + 39850^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142213021 - 2² = 4142213017 is a prime.

It is a super-2 number, since 2×4142213021² = 34315857422683892882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4142212984 and 4142213002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4142219021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071106510 + 2071106511.

It is an arithmetic number, because the mean of its divisors is an integer number (2071106511).

Almost surely, 2^4142213021 is an apocalyptic number.

It is an amenable number.

4142213021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4142213021 is an equidigital number, since it uses as much as digits as its factorization.

4142213021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4142213021 is about 64360.0265770610. The cubic root of 4142213021 is about 1605.9948311401.

Adding to 4142213021 its reverse (1203122414), we get a palindrome (5345335435).

The spelling of 4142213021 in words is "four billion, one hundred forty-two million, two hundred thirteen thousand, twenty-one".