20011222200037 has 2 divisors, whose sum is σ = 20011222200038. Its totient is φ = 20011222200036.

The previous prime is 20011222199887. The next prime is 20011222200049. The reversal of 20011222200037 is 73000222211002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16469953105761 + 3541269094276 = 4058319^2 + 1881826^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011222200037 - 2²³ = 20011213811429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20011222199990 and 20011222200017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011222200077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005611100018 + 10005611100019.

It is an arithmetic number, because the mean of its divisors is an integer number (10005611100019).

Almost surely, 2^{20011222200037} is an apocalyptic number.

It is an amenable number.

20011222200037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011222200037 is an equidigital number, since it uses as much as digits as its factorization.

20011222200037 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 20011222200037 its reverse (73000222211002), we get a palindrome (93011444411039).

The spelling of 20011222200037 in words is "twenty trillion, eleven billion, two hundred twenty-two million, two hundred thousand, thirty-seven".