210201011220 has 48 divisors (see below), whose sum is σ = 593771371200. Its totient is φ = 55557551616.

The previous prime is 210201011213. The next prime is 210201011291. The reversal of 210201011220 is 22110102012.

210201011220 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210201011196 and 210201011205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15494770 + ... + 15508329.

It is an arithmetic number, because the mean of its divisors is an integer number (12370236900).

Almost surely, 2^210201011220 is an apocalyptic number.

210201011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201011220 is an abundant number, since it is smaller than the sum of its proper divisors (383570359980).

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

210201011220 is a wasteful number, since it uses less digits than its factorization.

210201011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31003224 (or 31003222 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210201011220 its reverse (22110102012), we get a palindrome (232311113232).

The spelling of 210201011220 in words is "two hundred ten billion, two hundred one million, eleven thousand, two hundred twenty".