1220000021219 has 8 divisors (see below), whose sum is σ = 1396727574528. Its totient is φ = 1043882926920.

The previous prime is 1220000021203. The next prime is 1220000021243. The reversal of 1220000021219 is 9121200000221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220000021219 - 2⁴ = 1220000021203 is a prime.

It is a super-2 number, since 2×1220000021219² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220000021219.

It is not an unprimeable number, because it can be changed into a prime (1220000021249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152610467 + ... + 152618460.

It is an arithmetic number, because the mean of its divisors is an integer number (174590946816).

Almost surely, 2^{1220000021219} is an apocalyptic number.

1220000021219 is a deficient number, since it is larger than the sum of its proper divisors (176727553309).

1220000021219 is an equidigital number, since it uses as much as digits as its factorization.

1220000021219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305229505.

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

The spelling of 1220000021219 in words is "one trillion, two hundred twenty billion, twenty-one thousand, two hundred nineteen".