210220020122220 has 72 divisors (see below), whose sum is σ = 671228836190640. Its totient is φ = 53108215608960.

The previous prime is 210220020122179. The next prime is 210220020122221. The reversal of 210220020122220 is 22221020022012.

210220020122220 is a `hidden beast` number, since 2 + 1 + 0 + 220 + 0 + 201 + 22 + 220 = 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 = 210220020122193 and 210220020122202.

It is not an unprimeable number, because it can be changed into a prime (210220020122221) 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, 30733917651 + ... + 30733924490.

It is an arithmetic number, because the mean of its divisors is an integer number (9322622724870).

Almost surely, 2^{210220020122220} is an apocalyptic number.

210220020122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220020122220 is an abundant number, since it is smaller than the sum of its proper divisors (461008816068420).

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

210220020122220 is a wasteful number, since it uses less digits than its factorization.

210220020122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61467842175 (or 61467842170 counting only the distinct ones).

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

Adding to 210220020122220 its reverse (22221020022012), we get a palindrome (232441040144232).

The spelling of 210220020122220 in words is "two hundred ten trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred twenty".