20122221201037 has 2 divisors, whose sum is σ = 20122221201038. Its totient is φ = 20122221201036.

The previous prime is 20122221200923. The next prime is 20122221201109. The reversal of 20122221201037 is 73010212222102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16750201475401 + 3372019725636 = 4092701^2 + 1836306^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122221201037 - 2⁴³ = 11326128178829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122221201337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061110600518 + 10061110600519.

It is an arithmetic number, because the mean of its divisors is an integer number (10061110600519).

Almost surely, 2^{20122221201037} is an apocalyptic number.

It is an amenable number.

20122221201037 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122221201037 is an equidigital number, since it uses as much as digits as its factorization.

20122221201037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 20122221201037 its reverse (73010212222102), we get a palindrome (93132433423139).

The spelling of 20122221201037 in words is "twenty trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred one thousand, thirty-seven".