212120200110220 has 48 divisors (see below), whose sum is σ = 461581548341760. Its totient is φ = 81825819880896.

The previous prime is 212120200110211. The next prime is 212120200110239. The reversal of 212120200110220 is 22011002021212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212120200110194 and 212120200110203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1561016842 + ... + 1561152721.

It is an arithmetic number, because the mean of its divisors is an integer number (9616282257120).

Almost surely, 2^{212120200110220} is an apocalyptic number.

212120200110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120200110220 is an abundant number, since it is smaller than the sum of its proper divisors (249461348231540).

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

212120200110220 is a wasteful number, since it uses less digits than its factorization.

212120200110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3122169694 (or 3122169692 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212120200110220 its reverse (22011002021212), we get a palindrome (234131202131432).

The spelling of 212120200110220 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred million, one hundred ten thousand, two hundred twenty".