212110001121220 has 48 divisors (see below), whose sum is σ = 458933994747648. Its totient is φ = 82303952192000.

The previous prime is 212110001121217. The next prime is 212110001121257. The reversal of 212110001121220 is 22121100011212.

It is a junction number, because it is equal to n+sod(n) for n = 212110001121194 and 212110001121203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 998340406 + ... + 998552845.

It is an arithmetic number, because the mean of its divisors is an integer number (9561124890576).

Almost surely, 2^{212110001121220} is an apocalyptic number.

212110001121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110001121220 is an abundant number, since it is smaller than the sum of its proper divisors (246823993626428).

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

212110001121220 is a wasteful number, since it uses less digits than its factorization.

212110001121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996893420 (or 1996893418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212110001121220 its reverse (22121100011212), we get a palindrome (234231101132432).

The spelling of 212110001121220 in words is "two hundred twelve trillion, one hundred ten billion, one million, one hundred twenty-one thousand, two hundred twenty".