202220212210220 has 12 divisors (see below), whose sum is σ = 424662445641504. Its totient is φ = 80888084884080.

The previous prime is 202220212210207. The next prime is 202220212210307. The reversal of 202220212210220 is 22012212022202.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10111010610511 = 202220212210220 / (2 + 0 + 2 + 2 + 2 + 0 + 2 + 1 + 2 + 2 + 1 + 0 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 202220212210192 and 202220212210201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055505305236 + ... + 5055505305275.

It is an arithmetic number, because the mean of its divisors is an integer number (35388537136792).

Almost surely, 2^{202220212210220} is an apocalyptic number.

202220212210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202220212210220 is an abundant number, since it is smaller than the sum of its proper divisors (222442233431284).

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

202220212210220 is a wasteful number, since it uses less digits than its factorization.

202220212210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10111010610520 (or 10111010610518 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 202220212210220 its reverse (22012212022202), we get a palindrome (224232424232422).

The spelling of 202220212210220 in words is "two hundred two trillion, two hundred twenty billion, two hundred twelve million, two hundred ten thousand, two hundred twenty".