10221001202437 has 2 divisors, whose sum is σ = 10221001202438. Its totient is φ = 10221001202436.

The previous prime is 10221001202431. The next prime is 10221001202453. The reversal of 10221001202437 is 73420210012201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10153234179396 + 67767023041 = 3186414^2 + 260321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10221001202437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221001202431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110500601218 + 5110500601219.

It is an arithmetic number, because the mean of its divisors is an integer number (5110500601219).

Almost surely, 2^{10221001202437} is an apocalyptic number.

It is an amenable number.

10221001202437 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221001202437 is an equidigital number, since it uses as much as digits as its factorization.

10221001202437 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 10221001202437 its reverse (73420210012201), we get a palindrome (83641211214638).

The spelling of 10221001202437 in words is "ten trillion, two hundred twenty-one billion, one million, two hundred two thousand, four hundred thirty-seven".