1202220220057 has 2 divisors, whose sum is σ = 1202220220058. Its totient is φ = 1202220220056.

The previous prime is 1202220219947. The next prime is 1202220220063. The reversal of 1202220220057 is 7500220222021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1160336141721 + 41884078336 = 1077189^2 + 204656^2 .

It is an emirp because it is prime and its reverse (7500220222021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202220220057 - 2²³ = 1202211831449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1202220220457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110110028 + 601110110029.

It is an arithmetic number, because the mean of its divisors is an integer number (601110110029).

Almost surely, 2^{1202220220057} is an apocalyptic number.

It is an amenable number.

1202220220057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202220220057 is an equidigital number, since it uses as much as digits as its factorization.

1202220220057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

Adding to 1202220220057 its reverse (7500220222021), we get a palindrome (8702440442078).

The spelling of 1202220220057 in words is "one trillion, two hundred two billion, two hundred twenty million, two hundred twenty thousand, fifty-seven".