212112202222220 has 12 divisors (see below), whose sum is σ = 445435624666704. Its totient is φ = 84844880888880.

The previous prime is 212112202222211. The next prime is 212112202222241. The reversal of 212112202222220 is 22222202211212.

It is a super-2 number, since 2×212112202222220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5302805055536 + ... + 5302805055575.

It is an arithmetic number, because the mean of its divisors is an integer number (37119635388892).

Almost surely, 2^{212112202222220} is an apocalyptic number.

212112202222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212112202222220 is an abundant number, since it is smaller than the sum of its proper divisors (233323422444484).

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

212112202222220 is a wasteful number, since it uses less digits than its factorization.

212112202222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10605610111120 (or 10605610111118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 212112202222220 its reverse (22222202211212), we get a palindrome (234334404433432).

The spelling of 212112202222220 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty".