2151223033 has 2 divisors, whose sum is σ = 2151223034. Its totient is φ = 2151223032.

The previous prime is 2151223007. The next prime is 2151223037. The reversal of 2151223033 is 3303221512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2086388329 + 64834704 = 45677^2 + 8052^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151223033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2151222995 and 2151223013.

It is not a weakly prime, because it can be changed into another prime (2151223037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075611516 + 1075611517.

It is an arithmetic number, because the mean of its divisors is an integer number (1075611517).

Almost surely, 2^2151223033 is an apocalyptic number.

It is an amenable number.

2151223033 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151223033 is an equidigital number, since it uses as much as digits as its factorization.

2151223033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2151223033 is about 46381.2789064726. The cubic root of 2151223033 is about 1290.9075665770.

Adding to 2151223033 its reverse (3303221512), we get a palindrome (5454444545).

The spelling of 2151223033 in words is "two billion, one hundred fifty-one million, two hundred twenty-three thousand, thirty-three".