212210220022020 has 144 divisors (see below), whose sum is σ = 702235375208640. Its totient is φ = 51443988614400.

The previous prime is 212210220022001. The next prime is 212210220022063. The reversal of 212210220022020 is 20220022012212.

212210220022020 is a `hidden beast` number, since 2 + 1 + 221 + 0 + 2 + 200 + 220 + 20 = 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 = 212210220021984 and 212210220022002.

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, 114133615 + ... + 115978025.

It is an arithmetic number, because the mean of its divisors is an integer number (4876634550060).

Almost surely, 2^{212210220022020} is an apocalyptic number.

212210220022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212210220022020 is an abundant number, since it is smaller than the sum of its proper divisors (490025155186620).

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

212210220022020 is a wasteful number, since it uses less digits than its factorization.

212210220022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902546 (or 1902541 counting only the distinct ones).

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

Adding to 212210220022020 its reverse (20220022012212), we get a palindrome (232430242034232).

It can be divided in two parts, 2122102 and 20022020, that added together give a palindrome (22144122).

The spelling of 212210220022020 in words is "two hundred twelve trillion, two hundred ten billion, two hundred twenty million, twenty-two thousand, twenty".