21022012101037 has 2 divisors, whose sum is σ = 21022012101038. Its totient is φ = 21022012101036.

The previous prime is 21022012101019. The next prime is 21022012101067. The reversal of 21022012101037 is 73010121022012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17343176856196 + 3678835244841 = 4164514^2 + 1918029^2 .

It is a cyclic number.

It is not a de Polignac number, because 21022012101037 - 2²⁷ = 21021877883309 is a prime.

It is a super-2 number, since 2×21022012101037² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21022012100999 and 21022012101017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21022012101067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511006050518 + 10511006050519.

It is an arithmetic number, because the mean of its divisors is an integer number (10511006050519).

Almost surely, 2^{21022012101037} is an apocalyptic number.

It is an amenable number.

21022012101037 is a deficient number, since it is larger than the sum of its proper divisors (1).

21022012101037 is an equidigital number, since it uses as much as digits as its factorization.

21022012101037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 21022012101037 its reverse (73010121022012), we get a palindrome (94032133123049).

The spelling of 21022012101037 in words is "twenty-one trillion, twenty-two billion, twelve million, one hundred one thousand, thirty-seven".