210201212012220 has 144 divisors (see below), whose sum is σ = 749080682898912. Its totient is φ = 47038033451520.

The previous prime is 210201212012189. The next prime is 210201212012227. The reversal of 210201212012220 is 22210212102012.

It is a happy number.

210201212012220 is a `hidden beast` number, since 21 + 0 + 201 + 21 + 201 + 2 + 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 = 210201212012193 and 210201212012202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201212012227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4083136887 + ... + 4083188366.

It is an arithmetic number, because the mean of its divisors is an integer number (5201949186798).

Almost surely, 2^{210201212012220} is an apocalyptic number.

210201212012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201212012220 is an abundant number, since it is smaller than the sum of its proper divisors (538879470886692).

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

210201212012220 is a wasteful number, since it uses less digits than its factorization.

210201212012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166325292 (or 8166325287 counting only the distinct ones).

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

Adding to 210201212012220 its reverse (22210212102012), we get a palindrome (232411424114232).

The spelling of 210201212012220 in words is "two hundred ten trillion, two hundred one billion, two hundred twelve million, twelve thousand, two hundred twenty".