21022210200037 has 2 divisors, whose sum is σ = 21022210200038. Its totient is φ = 21022210200036.

The previous prime is 21022210199989. The next prime is 21022210200049. The reversal of 21022210200037 is 73000201222012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16802776576161 + 4219433623876 = 4099119^2 + 2054126^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022210200037 - 2¹⁹ = 21022209675749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21022210199990 and 21022210200017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21022210200077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511105100018 + 10511105100019.

It is an arithmetic number, because the mean of its divisors is an integer number (10511105100019).

Almost surely, 2^{21022210200037} is an apocalyptic number.

It is an amenable number.

21022210200037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022210200037 is an equidigital number, since it uses as much as digits as its factorization.

21022210200037 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21022210200037 its reverse (73000201222012), we get a palindrome (94022411422049).

The spelling of 21022210200037 in words is "twenty-one trillion, twenty-two billion, two hundred ten million, two hundred thousand, thirty-seven".