212101202120 has 32 divisors (see below), whose sum is σ = 477557640000. Its totient is φ = 84781825728.

The previous prime is 212101202119. The next prime is 212101202123. The reversal of 212101202120 is 21202101212.

It is a junction number, because it is equal to n+sod(n) for n = 212101202095 and 212101202104.

It is not an unprimeable number, because it can be changed into a prime (212101202123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774370 + ... + 1890129.

It is an arithmetic number, because the mean of its divisors is an integer number (14923676250).

Almost surely, 2^212101202120 is an apocalyptic number.

212101202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101202120 is an abundant number, since it is smaller than the sum of its proper divisors (265456437880).

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

212101202120 is a wasteful number, since it uses less digits than its factorization.

212101202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3665957 (or 3665953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212101202120 its reverse (21202101212), we get a palindrome (233303303332).

The spelling of 212101202120 in words is "two hundred twelve billion, one hundred one million, two hundred two thousand, one hundred twenty".