212012222211220 has 24 divisors (see below), whose sum is σ = 445563214588800. Its totient is φ = 84740594037792.

The previous prime is 212012222211133. The next prime is 212012222211233. The reversal of 212012222211220 is 22112222210212.

It is a junction number, because it is equal to n+sod(n) for n = 212012222211191 and 212012222211200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018400880 + ... + 4018453639.

It is an arithmetic number, because the mean of its divisors is an integer number (18565133941200).

Almost surely, 2^{212012222211220} is an apocalyptic number.

212012222211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212012222211220 is an abundant number, since it is smaller than the sum of its proper divisors (233550992377580).

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

212012222211220 is a wasteful number, since it uses less digits than its factorization.

212012222211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8036855847 (or 8036855845 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212012222211220 its reverse (22112222210212), we get a palindrome (234124444421432).

The spelling of 212012222211220 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-two million, two hundred eleven thousand, two hundred twenty".