1220001413377 has 2 divisors, whose sum is σ = 1220001413378. Its totient is φ = 1220001413376.

The previous prime is 1220001413359. The next prime is 1220001413437. The reversal of 1220001413377 is 7733141000221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1213101785281 + 6899628096 = 1101409^2 + 83064^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220001413377 - 2³¹ = 1217853929729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220001413677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000706688 + 610000706689.

It is an arithmetic number, because the mean of its divisors is an integer number (610000706689).

Almost surely, 2^{1220001413377} is an apocalyptic number.

It is an amenable number.

1220001413377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220001413377 is an equidigital number, since it uses as much as digits as its factorization.

1220001413377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

Adding to 1220001413377 its reverse (7733141000221), we get a palindrome (8953142413598).

The spelling of 1220001413377 in words is "one trillion, two hundred twenty billion, one million, four hundred thirteen thousand, three hundred seventy-seven".