220312021203 has 32 divisors (see below), whose sum is σ = 363776313600. Its totient is φ = 130959462528.

The previous prime is 220312021199. The next prime is 220312021273. The reversal of 220312021203 is 302120213022.

It is not a de Polignac number, because 220312021203 - 2² = 220312021199 is a prime.

It is a super-2 number, since 2×220312021203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220312021273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12622401 + ... + 12639842.

It is an arithmetic number, because the mean of its divisors is an integer number (11368009800).

Almost surely, 2^220312021203 is an apocalyptic number.

220312021203 is a deficient number, since it is larger than the sum of its proper divisors (143464292397).

220312021203 is a wasteful number, since it uses less digits than its factorization.

220312021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25262288 (or 25262282 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220312021203 its reverse (302120213022), we get a palindrome (522432234225).

The spelling of 220312021203 in words is "two hundred twenty billion, three hundred twelve million, twenty-one thousand, two hundred three".