2211020200061 has 2 divisors, whose sum is σ = 2211020200062. Its totient is φ = 2211020200060.

The previous prime is 2211020200043. The next prime is 2211020200087. The reversal of 2211020200061 is 1600020201122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1743704404036 + 467315796025 = 1320494^2 + 683605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211020200061 is a prime.

It is a super-2 number, since 2×2211020200061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211020200561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105510100030 + 1105510100031.

It is an arithmetic number, because the mean of its divisors is an integer number (1105510100031).

Almost surely, 2^{2211020200061} is an apocalyptic number.

It is an amenable number.

2211020200061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211020200061 is an equidigital number, since it uses as much as digits as its factorization.

2211020200061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2211020200061 its reverse (1600020201122), we get a palindrome (3811040401183).

The spelling of 2211020200061 in words is "two trillion, two hundred eleven billion, twenty million, two hundred thousand, sixty-one".