1220000204513 has 2 divisors, whose sum is σ = 1220000204514. Its totient is φ = 1220000204512.

The previous prime is 1220000204461. The next prime is 1220000204551. The reversal of 1220000204513 is 3154020000221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 611425471969 + 608574732544 = 781937^2 + 780112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220000204513 - 2¹² = 1220000200417 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220000204413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000102256 + 610000102257.

It is an arithmetic number, because the mean of its divisors is an integer number (610000102257).

Almost surely, 2^{1220000204513} is an apocalyptic number.

It is an amenable number.

1220000204513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220000204513 is an equidigital number, since it uses as much as digits as its factorization.

1220000204513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 1220000204513 its reverse (3154020000221), we get a palindrome (4374020204734).

The spelling of 1220000204513 in words is "one trillion, two hundred twenty billion, two hundred four thousand, five hundred thirteen".