202221011203020 has 72 divisors (see below), whose sum is σ = 613409558920704. Its totient is φ = 53925090905088.

The previous prime is 202221011202961. The next prime is 202221011203021. The reversal of 202221011203020 is 20302110122202.

202221011203020 is a `hidden beast` number, since 20 + 2 + 221 + 0 + 1 + 120 + 302 + 0 = 666.

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 = 202221011202984 and 202221011203002.

It is not an unprimeable number, because it can be changed into a prime (202221011203021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13865052 + ... + 24427068.

It is an arithmetic number, because the mean of its divisors is an integer number (8519577207232).

Almost surely, 2^{202221011203020} is an apocalyptic number.

202221011203020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202221011203020 is an abundant number, since it is smaller than the sum of its proper divisors (411188547717684).

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

202221011203020 is a wasteful number, since it uses less digits than its factorization.

202221011203020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10668399 (or 10668394 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 202221011203020 its reverse (20302110122202), we get a palindrome (222523121325222).

The spelling of 202221011203020 in words is "two hundred two trillion, two hundred twenty-one billion, eleven million, two hundred three thousand, twenty".