1222021434203 has 4 divisors (see below), whose sum is σ = 1250440537368. Its totient is φ = 1193602331040.

The previous prime is 1222021434199. The next prime is 1222021434211. The reversal of 1222021434203 is 3024341202221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222021434203 - 2² = 1222021434199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222021434233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14209551518 + ... + 14209551603.

It is an arithmetic number, because the mean of its divisors is an integer number (312610134342).

Almost surely, 2^{1222021434203} is an apocalyptic number.

1222021434203 is a deficient number, since it is larger than the sum of its proper divisors (28419103165).

1222021434203 is an equidigital number, since it uses as much as digits as its factorization.

1222021434203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28419103164.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1222021434203 its reverse (3024341202221), we get a palindrome (4246362636424).

The spelling of 1222021434203 in words is "one trillion, two hundred twenty-two billion, twenty-one million, four hundred thirty-four thousand, two hundred three".