201212020212120 has 96 divisors (see below), whose sum is σ = 654116915808720. Its totient is φ = 53641945893120.

The previous prime is 201212020212013. The next prime is 201212020212121. The reversal of 201212020212120 is 21212020212102.

It is a happy number.

201212020212120 is a `hidden beast` number, since 201 + 2 + 120 + 202 + 121 + 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 = 201212020212093 and 201212020212102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212020212121) 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, 74678766 + ... + 77326205.

Almost surely, 2^{201212020212120} is an apocalyptic number.

201212020212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201212020212120 is an abundant number, since it is smaller than the sum of its proper divisors (452904895596600).

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

201212020212120 is a wasteful number, since it uses less digits than its factorization.

201212020212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152008665 (or 152008658 counting only the distinct ones).

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

Subtracting from 201212020212120 its sum of digits (18), we obtain a palindrome (201212020212102).

Adding to 201212020212120 its reverse (21212020212102), we get a palindrome (222424040424222).

The spelling of 201212020212120 in words is "two hundred one trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, one hundred twenty".