1213022220203 has 8 divisors (see below), whose sum is σ = 1226480203872. Its totient is φ = 1199637979456.

The previous prime is 1213022220197. The next prime is 1213022220211. The reversal of 1213022220203 is 3020222203121.

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 1213022220203 - 2³⁸ = 938144313259 is a prime.

It is a super-2 number, since 2×1213022220203² (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 (1213022220253) 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, 18402650 + ... + 18468447.

It is an arithmetic number, because the mean of its divisors is an integer number (153310025484).

Almost surely, 2^{1213022220203} is an apocalyptic number.

1213022220203 is a deficient number, since it is larger than the sum of its proper divisors (13457983669).

1213022220203 is a wasteful number, since it uses less digits than its factorization.

1213022220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36871461.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1213022220203 its reverse (3020222203121), we get a palindrome (4233244423324).

The spelling of 1213022220203 in words is "one trillion, two hundred thirteen billion, twenty-two million, two hundred twenty thousand, two hundred three".