202200212221020 has 144 divisors (see below), whose sum is σ = 661567482069312. Its totient is φ = 49693481026560.

The previous prime is 202200212221009. The next prime is 202200212221037. The reversal of 202200212221020 is 20122212002202.

202200212221020 is a `hidden beast` number, since 2 + 0 + 220 + 0 + 212 + 2 + 210 + 20 = 666.

It is a super-2 number, since 2×202200212221020² (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 = 202200212220984 and 202200212221002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66994417 + ... + 69947496.

Almost surely, 2^{202200212221020} is an apocalyptic number.

202200212221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202200212221020 is an abundant number, since it is smaller than the sum of its proper divisors (459367269848292).

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

202200212221020 is a wasteful number, since it uses less digits than its factorization.

202200212221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136942572 (or 136942567 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 202200212221020 its reverse (20122212002202), we get a palindrome (222322424223222).

The spelling of 202200212221020 in words is "two hundred two trillion, two hundred billion, two hundred twelve million, two hundred twenty-one thousand, twenty".