10033220381 has 2 divisors, whose sum is σ = 10033220382. Its totient is φ = 10033220380.

The previous prime is 10033220369. The next prime is 10033220399. The reversal of 10033220381 is 18302233001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6078697156 + 3954523225 = 77966^2 + 62885^2 .

It is a cyclic number.

It is not a de Polignac number, because 10033220381 - 2¹⁴ = 10033203997 is a prime.

It is a super-2 number, since 2×10033220381² (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 (10033220581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5016610190 + 5016610191.

It is an arithmetic number, because the mean of its divisors is an integer number (5016610191).

Almost surely, 2^10033220381 is an apocalyptic number.

It is an amenable number.

10033220381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10033220381 is an equidigital number, since it uses as much as digits as its factorization.

10033220381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10033220381 its reverse (18302233001), we get a palindrome (28335453382).

The spelling of 10033220381 in words is "ten billion, thirty-three million, two hundred twenty thousand, three hundred eighty-one".