1220511242407 has 2 divisors, whose sum is σ = 1220511242408. Its totient is φ = 1220511242406.

The previous prime is 1220511242399. The next prime is 1220511242413. The reversal of 1220511242407 is 7042421150221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220511242407 - 2³ = 1220511242399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220511243407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610255621203 + 610255621204.

It is an arithmetic number, because the mean of its divisors is an integer number (610255621204).

Almost surely, 2^{1220511242407} is an apocalyptic number.

1220511242407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220511242407 is an equidigital number, since it uses as much as digits as its factorization.

1220511242407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 31.

Adding to 1220511242407 its reverse (7042421150221), we get a palindrome (8262932392628).

The spelling of 1220511242407 in words is "one trillion, two hundred twenty billion, five hundred eleven million, two hundred forty-two thousand, four hundred seven".