2120223122057 has 2 divisors, whose sum is σ = 2120223122058. Its totient is φ = 2120223122056.

The previous prime is 2120223122041. The next prime is 2120223122123. The reversal of 2120223122057 is 7502213220212.

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., 1403239253056 + 716983869001 = 1184584^2 + 846749^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120223122057 - 2⁴ = 2120223122041 is a prime.

It is a super-2 number, since 2×2120223122057² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2120223122557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060111561028 + 1060111561029.

It is an arithmetic number, because the mean of its divisors is an integer number (1060111561029).

Almost surely, 2^{2120223122057} is an apocalyptic number.

It is an amenable number.

2120223122057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120223122057 is an equidigital number, since it uses as much as digits as its factorization.

2120223122057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 2120223122057 its reverse (7502213220212), we get a palindrome (9622436342269).

The spelling of 2120223122057 in words is "two trillion, one hundred twenty billion, two hundred twenty-three million, one hundred twenty-two thousand, fifty-seven".