1222001212057 has 2 divisors, whose sum is σ = 1222001212058. Its totient is φ = 1222001212056.

The previous prime is 1222001212021. The next prime is 1222001212123. The reversal of 1222001212057 is 7502121002221.

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., 645220201536 + 576781010521 = 803256^2 + 759461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222001212057 - 2¹¹ = 1222001210009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222001212007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611000606028 + 611000606029.

It is an arithmetic number, because the mean of its divisors is an integer number (611000606029).

Almost surely, 2^{1222001212057} is an apocalyptic number.

It is an amenable number.

1222001212057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222001212057 is an equidigital number, since it uses as much as digits as its factorization.

1222001212057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 1222001212057 its reverse (7502121002221), we get a palindrome (8724122214278).

The spelling of 1222001212057 in words is "one trillion, two hundred twenty-two billion, one million, two hundred twelve thousand, fifty-seven".