22002135457 has 2 divisors, whose sum is σ = 22002135458. Its totient is φ = 22002135456.

The previous prime is 22002135439. The next prime is 22002135461. The reversal of 22002135457 is 75453120022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18214471521 + 3787663936 = 134961^2 + 61544^2 .

It is a cyclic number.

It is not a de Polignac number, because 22002135457 - 2¹⁹ = 22001611169 is a prime.

It is not a weakly prime, because it can be changed into another prime (22002135487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001067728 + 11001067729.

It is an arithmetic number, because the mean of its divisors is an integer number (11001067729).

Almost surely, 2^22002135457 is an apocalyptic number.

It is an amenable number.

22002135457 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002135457 is an equidigital number, since it uses as much as digits as its factorization.

22002135457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

Adding to 22002135457 its reverse (75453120022), we get a palindrome (97455255479).

The spelling of 22002135457 in words is "twenty-two billion, two million, one hundred thirty-five thousand, four hundred fifty-seven".