210210212212020 has 288 divisors, whose sum is σ = 690344279049600. Its totient is φ = 53096122888704.

The previous prime is 210210212212009. The next prime is 210210212212043. The reversal of 210210212212020 is 20212212012012.

It is a happy number.

210210212212020 is a `hidden beast` number, since 2 + 10 + 210 + 21 + 221 + 202 + 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 = 210210212211984 and 210210212212002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1108918887 + ... + 1109108433.

It is an arithmetic number, because the mean of its divisors is an integer number (2397028746700).

Almost surely, 2^{210210212212020} is an apocalyptic number.

210210212212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210210212212020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345172139524800).

210210212212020 is an abundant number, since it is smaller than the sum of its proper divisors (480134066837580).

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

210210212212020 is a wasteful number, since it uses less digits than its factorization.

210210212212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195292 (or 195265 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210210212212020 its reverse (20212212012012), we get a palindrome (230422424224032).

The spelling of 210210212212020 in words is "two hundred ten trillion, two hundred ten billion, two hundred twelve million, two hundred twelve thousand, twenty".