202224213121 has 16 divisors (see below), whose sum is σ = 237359041920. Its totient is φ = 168672539520.

The previous prime is 202224213109. The next prime is 202224213137. The reversal of 202224213121 is 121312422202.

It is a cyclic number.

It is not a de Polignac number, because 202224213121 - 2¹³ = 202224204929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202224213092 and 202224213101.

It is not an unprimeable number, because it can be changed into a prime (202224213181) 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, 794031 + ... + 1017316.

It is an arithmetic number, because the mean of its divisors is an integer number (14834940120).

Almost surely, 2^202224213121 is an apocalyptic number.

It is an amenable number.

202224213121 is a deficient number, since it is larger than the sum of its proper divisors (35134828799).

202224213121 is a wasteful number, since it uses less digits than its factorization.

202224213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811784.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 202224213121 its reverse (121312422202), we get a palindrome (323536635323).

The spelling of 202224213121 in words is "two hundred two billion, two hundred twenty-four million, two hundred thirteen thousand, one hundred twenty-one".