22133213477 has 2 divisors, whose sum is σ = 22133213478. Its totient is φ = 22133213476.

The previous prime is 22133213371. The next prime is 22133213489. The reversal of 22133213477 is 77431233122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17018246116 + 5114967361 = 130454^2 + 71519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22133213477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22133213077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066606738 + 11066606739.

It is an arithmetic number, because the mean of its divisors is an integer number (11066606739).

Almost surely, 2^22133213477 is an apocalyptic number.

It is an amenable number.

22133213477 is a deficient number, since it is larger than the sum of its proper divisors (1).

22133213477 is an equidigital number, since it uses as much as digits as its factorization.

22133213477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 35.

Adding to 22133213477 its reverse (77431233122), we get a palindrome (99564446599).

The spelling of 22133213477 in words is "twenty-two billion, one hundred thirty-three million, two hundred thirteen thousand, four hundred seventy-seven".