212220100000037 has 2 divisors, whose sum is σ = 212220100000038. Its totient is φ = 212220100000036.

The previous prime is 212220099999967. The next prime is 212220100000043. The reversal of 212220100000037 is 730000001022212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111772279762081 + 100447820237956 = 10572241^2 + 10022366^2 .

It is a cyclic number.

It is not a de Polignac number, because 212220100000037 - 2²⁰ = 212220098951461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212220099999964 and 212220100000018.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220700000037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110050000018 + 106110050000019.

It is an arithmetic number, because the mean of its divisors is an integer number (106110050000019).

Almost surely, 2^{212220100000037} is an apocalyptic number.

It is an amenable number.

212220100000037 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220100000037 is an equidigital number, since it uses as much as digits as its factorization.

212220100000037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 212220100000037 its reverse (730000001022212), we get a palindrome (942220101022249).

The spelling of 212220100000037 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred million, thirty-seven", and thus it is an aban number.