202221001221120 has 264 divisors, whose sum is σ = 800789147630784. Its totient is φ = 46221943062528.

The previous prime is 202221001221023. The next prime is 202221001221121. The reversal of 202221001221120 is 21122100122202.

It is a happy number.

202221001221120 is a `hidden beast` number, since 2 + 0 + 222 + 100 + 1 + 221 + 120 = 666.

It is a super-2 number, since 2×202221001221120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202221001221093 and 202221001221102.

It is not an unprimeable number, because it can be changed into a prime (202221001221121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313140054 + ... + 313785173.

Almost surely, 2^{202221001221120} is an apocalyptic number.

202221001221120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221001221120 is an abundant number, since it is smaller than the sum of its proper divisors (598568146409664).

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

202221001221120 is a wasteful number, since it uses less digits than its factorization.

202221001221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626925265 (or 626925244 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 202221001221120 its reverse (21122100122202), we get a palindrome (223343101343322).

The spelling of 202221001221120 in words is "two hundred two trillion, two hundred twenty-one billion, one million, two hundred twenty-one thousand, one hundred twenty".