202103221120 has 64 divisors (see below), whose sum is σ = 485281789200. Its totient is φ = 80485101568.

The previous prime is 202103221109. The next prime is 202103221127. The reversal of 202103221120 is 21122301202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×202103221120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 202103221094 and 202103221103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202103221127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550285 + ... + 840844.

Almost surely, 2^202103221120 is an apocalyptic number.

202103221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202103221120 is an abundant number, since it is smaller than the sum of its proper divisors (283178568080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202103221120 is a wasteful number, since it uses less digits than its factorization.

202103221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391375 (or 1391363 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 202103221120 its reverse (21122301202), we get a palindrome (223225522322).

The spelling of 202103221120 in words is "two hundred two billion, one hundred three million, two hundred twenty-one thousand, one hundred twenty".