202221121120 has 48 divisors (see below), whose sum is σ = 477779290128. Its totient is φ = 80883048960.

The previous prime is 202221121117. The next prime is 202221121171. The reversal of 202221121120 is 21121122202.

It is a happy number.

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 = 202221121094 and 202221121103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3083875 + ... + 3148765.

It is an arithmetic number, because the mean of its divisors is an integer number (9953735211).

Almost surely, 2^202221121120 is an apocalyptic number.

202221121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221121120 is an abundant number, since it is smaller than the sum of its proper divisors (275558169008).

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

202221121120 is a wasteful number, since it uses less digits than its factorization.

202221121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84383 (or 84375 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 202221121120 its reverse (21121122202), we get a palindrome (223342243322).

The spelling of 202221121120 in words is "two hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty".