1220221200239 has 2 divisors, whose sum is σ = 1220221200240. Its totient is φ = 1220221200238.

The previous prime is 1220221200199. The next prime is 1220221200287. The reversal of 1220221200239 is 9320021220221.

It is a weak prime.

It is an emirp because it is prime and its reverse (9320021220221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220221200239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220221200839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610110600119 + 610110600120.

It is an arithmetic number, because the mean of its divisors is an integer number (610110600120).

Almost surely, 2^{1220221200239} is an apocalyptic number.

1220221200239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220221200239 is an equidigital number, since it uses as much as digits as its factorization.

1220221200239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 1220221200239 in words is "one trillion, two hundred twenty billion, two hundred twenty-one million, two hundred thousand, two hundred thirty-nine".