1222220221203 has 16 divisors (see below), whose sum is σ = 1633167992736. Its totient is φ = 813044843520.

The previous prime is 1222220221147. The next prime is 1222220221247. The reversal of 1222220221203 is 3021220222221.

It is not a de Polignac number, because 1222220221203 - 2¹² = 1222220217107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222220221203.

It is not an unprimeable number, because it can be changed into a prime (1222220221253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2379523 + ... + 2847203.

It is an arithmetic number, because the mean of its divisors is an integer number (102072999546).

Almost surely, 2^{1222220221203} is an apocalyptic number.

1222220221203 is a deficient number, since it is larger than the sum of its proper divisors (410947771533).

1222220221203 is a wasteful number, since it uses less digits than its factorization.

1222220221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469574.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1222220221203 its reverse (3021220222221), we get a palindrome (4243440443424).

The spelling of 1222220221203 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, two hundred three".