20220220021237 has 2 divisors, whose sum is σ = 20220220021238. Its totient is φ = 20220220021236.

The previous prime is 20220220021097. The next prime is 20220220021283. The reversal of 20220220021237 is 73212002202202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19199461394961 + 1020758626276 = 4381719^2 + 1010326^2 .

It is a cyclic number.

It is not a de Polignac number, because 20220220021237 - 2²³ = 20220211632629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220220021297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110110010618 + 10110110010619.

It is an arithmetic number, because the mean of its divisors is an integer number (10110110010619).

Almost surely, 2^{20220220021237} is an apocalyptic number.

It is an amenable number.

20220220021237 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220220021237 is an equidigital number, since it uses as much as digits as its factorization.

20220220021237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20220220021237 its reverse (73212002202202), we get a palindrome (93432222223439).

The spelling of 20220220021237 in words is "twenty trillion, two hundred twenty billion, two hundred twenty million, twenty-one thousand, two hundred thirty-seven".