202021021120 has 56 divisors (see below), whose sum is σ = 481154994000. Its totient is φ = 80792881152.

The previous prime is 202021021093. The next prime is 202021021129. The reversal of 202021021120 is 21120120202.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 202021021120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021021129) 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, 1685751 + ... + 1801609.

Almost surely, 2^202021021120 is an apocalyptic number.

202021021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202021021120 is an abundant number, since it is smaller than the sum of its proper divisors (279133972880).

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

202021021120 is a wasteful number, since it uses less digits than its factorization.

202021021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121325 (or 121315 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202021021120 its reverse (21120120202), we get a palindrome (223141141322).

The spelling of 202021021120 in words is "two hundred two billion, twenty-one million, twenty-one thousand, one hundred twenty".