22202602381 has 2 divisors, whose sum is σ = 22202602382. Its totient is φ = 22202602380.

The previous prime is 22202602369. The next prime is 22202602453. The reversal of 22202602381 is 18320620222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11605752900 + 10596849481 = 107730^2 + 102941^2 .

It is a cyclic number.

It is not a de Polignac number, because 22202602381 - 2²⁹ = 21665731469 is a prime.

It is a super-2 number, since 2×22202602381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22202612381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11101301190 + 11101301191.

It is an arithmetic number, because the mean of its divisors is an integer number (11101301191).

Almost surely, 2^22202602381 is an apocalyptic number.

It is an amenable number.

22202602381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22202602381 is an equidigital number, since it uses as much as digits as its factorization.

22202602381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The spelling of 22202602381 in words is "twenty-two billion, two hundred two million, six hundred two thousand, three hundred eighty-one".