212201005837 has 2 divisors, whose sum is σ = 212201005838. Its totient is φ = 212201005836.

The previous prime is 212201005759. The next prime is 212201005889. The reversal of 212201005837 is 738500102212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134262883561 + 77938122276 = 366419^2 + 279174^2 .

It is a cyclic number.

It is not a de Polignac number, because 212201005837 - 2¹¹ = 212201003789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212201005799 and 212201005808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212201005937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100502918 + 106100502919.

It is an arithmetic number, because the mean of its divisors is an integer number (106100502919).

Almost surely, 2^212201005837 is an apocalyptic number.

It is an amenable number.

212201005837 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201005837 is an equidigital number, since it uses as much as digits as its factorization.

212201005837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 31.

The spelling of 212201005837 in words is "two hundred twelve billion, two hundred one million, five thousand, eight hundred thirty-seven".