10221212011237 has 2 divisors, whose sum is σ = 10221212011238. Its totient is φ = 10221212011236.

The previous prime is 10221212011187. The next prime is 10221212011247. The reversal of 10221212011237 is 73211021212201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9936654844516 + 284557166721 = 3152246^2 + 533439^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221212011237 - 2⁴³ = 1425118989029 is a prime.

It is a super-2 number, since 2×10221212011237² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221212011247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110606005618 + 5110606005619.

It is an arithmetic number, because the mean of its divisors is an integer number (5110606005619).

Almost surely, 2^{10221212011237} is an apocalyptic number.

It is an amenable number.

10221212011237 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221212011237 is an equidigital number, since it uses as much as digits as its factorization.

10221212011237 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 25.

Adding to 10221212011237 its reverse (73211021212201), we get a palindrome (83432233223438).

The spelling of 10221212011237 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, eleven thousand, two hundred thirty-seven".