212120110210020 has 24 divisors (see below), whose sum is σ = 593936308588224. Its totient is φ = 56565362722656.

The previous prime is 212120110210007. The next prime is 212120110210027. The reversal of 212120110210020 is 20012011021212.

212120110210020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212120110210020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (212120110210027) 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, 1767667585024 + ... + 1767667585143.

It is an arithmetic number, because the mean of its divisors is an integer number (24747346191176).

Almost surely, 2^{212120110210020} is an apocalyptic number.

212120110210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120110210020 is an abundant number, since it is smaller than the sum of its proper divisors (381816198378204).

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

212120110210020 is a wasteful number, since it uses less digits than its factorization.

212120110210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535335170179 (or 3535335170177 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212120110210020 its reverse (20012011021212), we get a palindrome (232132121231232).

The spelling of 212120110210020 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred ten million, two hundred ten thousand, twenty".