220021000212037 has 2 divisors, whose sum is σ = 220021000212038. Its totient is φ = 220021000212036.

The previous prime is 220021000212011. The next prime is 220021000212049. The reversal of 220021000212037 is 730212000120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215464850195841 + 4556150016196 = 14678721^2 + 2134514^2 .

It is a cyclic number.

It is not a de Polignac number, because 220021000212037 - 2²³ = 220020991823429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220021000211999 and 220021000212017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220021000212067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110010500106018 + 110010500106019.

It is an arithmetic number, because the mean of its divisors is an integer number (110010500106019).

Almost surely, 2^{220021000212037} is an apocalyptic number.

It is an amenable number.

220021000212037 is a deficient number, since it is larger than the sum of its proper divisors (1).

220021000212037 is an equidigital number, since it uses as much as digits as its factorization.

220021000212037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 220021000212037 its reverse (730212000120022), we get a palindrome (950233000332059).

The spelling of 220021000212037 in words is "two hundred twenty trillion, twenty-one billion, two hundred twelve thousand, thirty-seven".