202223121 has 8 divisors (see below), whose sum is σ = 270215040. Its totient is φ = 134523312.

The previous prime is 202223089. The next prime is 202223141. The reversal of 202223121 is 121322202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202223121 - 2⁵ = 202223089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202223121.

It is not an unprimeable number, because it can be changed into a prime (202223141) 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, 71406 + ... + 74183.

It is an arithmetic number, because the mean of its divisors is an integer number (33776880).

Almost surely, 2^202223121 is an apocalyptic number.

It is an amenable number.

202223121 is a deficient number, since it is larger than the sum of its proper divisors (67991919).

202223121 is a wasteful number, since it uses less digits than its factorization.

202223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146055.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 202223121 is about 14220.5176066133. The cubic root of 202223121 is about 586.9623834493.

Adding to 202223121 its reverse (121322202), we get a palindrome (323545323).

The spelling of 202223121 in words is "two hundred two million, two hundred twenty-three thousand, one hundred twenty-one".