1220122220203 has 8 divisors (see below), whose sum is σ = 1266253915680. Its totient is φ = 1174261092480.

The previous prime is 1220122220153. The next prime is 1220122220227. The reversal of 1220122220203 is 3020222210221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220122220203 is a prime.

It is a super-2 number, since 2×1220122220203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220122220903) 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, 67632750 + ... + 67650787.

It is an arithmetic number, because the mean of its divisors is an integer number (158281739460).

Almost surely, 2^{1220122220203} is an apocalyptic number.

1220122220203 is a deficient number, since it is larger than the sum of its proper divisors (46131695477).

1220122220203 is a wasteful number, since it uses less digits than its factorization.

1220122220203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135283877.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220122220203 its reverse (3020222210221), we get a palindrome (4240344430424).

The spelling of 1220122220203 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, two hundred three".