1220001200219 has 2 divisors, whose sum is σ = 1220001200220. Its totient is φ = 1220001200218.

The previous prime is 1220001200083. The next prime is 1220001200221. The reversal of 1220001200219 is 9120021000221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220001200219 is a prime.

It is a super-2 number, since 2×1220001200219² (a number of 25 digits) contains 22 as substring.

Together with 1220001200221, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220001200219.

It is not a weakly prime, because it can be changed into another prime (1220001200239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610000600109 + 610000600110.

It is an arithmetic number, because the mean of its divisors is an integer number (610000600110).

Almost surely, 2^{1220001200219} is an apocalyptic number.

1220001200219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220001200219 is an equidigital number, since it uses as much as digits as its factorization.

1220001200219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1220001200219 in words is "one trillion, two hundred twenty billion, one million, two hundred thousand, two hundred nineteen".