210202111212120 has 96 divisors (see below), whose sum is σ = 696046613605200. Its totient is φ = 54996275632896.

The previous prime is 210202111211977. The next prime is 210202111212131. The reversal of 210202111212120 is 21212111202012.

210202111212120 is a `hidden beast` number, since 21 + 0 + 202 + 111 + 212 + 120 = 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 = 210202111212093 and 210202111212102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5508421990 + ... + 5508460149.

Almost surely, 2^{210202111212120} is an apocalyptic number.

210202111212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210202111212120 is an abundant number, since it is smaller than the sum of its proper divisors (485844502393080).

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

210202111212120 is a wasteful number, since it uses less digits than its factorization.

210202111212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016882209 (or 11016882202 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210202111212120 its reverse (21212111202012), we get a palindrome (231414222414132).

The spelling of 210202111212120 in words is "two hundred ten trillion, two hundred two billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty".