20020214224421 has 2 divisors, whose sum is σ = 20020214224422. Its totient is φ = 20020214224420.

The previous prime is 20020214224411. The next prime is 20020214224441. The reversal of 20020214224421 is 12442241202002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14195299552225 + 5824914672196 = 3767665^2 + 2413486^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020214224421 - 2³⁸ = 19745336317477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020214224411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010107112210 + 10010107112211.

It is an arithmetic number, because the mean of its divisors is an integer number (10010107112211).

Almost surely, 2^{20020214224421} is an apocalyptic number.

It is an amenable number.

20020214224421 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020214224421 is an equidigital number, since it uses as much as digits as its factorization.

20020214224421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 20020214224421 its reverse (12442241202002), we get a palindrome (32462455426423).

The spelling of 20020214224421 in words is "twenty trillion, twenty billion, two hundred fourteen million, two hundred twenty-four thousand, four hundred twenty-one".