222121120203 has 24 divisors (see below), whose sum is σ = 331417798608. Its totient is φ = 143245703232.

The previous prime is 222121120189. The next prime is 222121120213. The reversal of 222121120203 is 302021121222.

222121120203 is a `hidden beast` number, since 222 + 121 + 120 + 203 = 666.

It is not a de Polignac number, because 222121120203 - 2¹⁶ = 222121054667 is a prime.

It is a super-2 number, since 2×222121120203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222121120213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1870225 + ... + 1985442.

It is an arithmetic number, because the mean of its divisors is an integer number (13809074942).

Almost surely, 2^222121120203 is an apocalyptic number.

222121120203 is a deficient number, since it is larger than the sum of its proper divisors (109296678405).

222121120203 is a wasteful number, since it uses less digits than its factorization.

222121120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855883 (or 3855880 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 222121120203 its reverse (302021121222), we get a palindrome (524142241425).

The spelling of 222121120203 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty thousand, two hundred three".