211222220012000 has 192 divisors, whose sum is σ = 565124863867200. Its totient is φ = 77282031052800.

The previous prime is 211222220011991. The next prime is 211222220012033. The reversal of 211222220012000 is 210022222112.

It is a happy number.

It is a super-2 number, since 2×211222220012000² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222220012000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45713927 + ... + 50121926.

It is an arithmetic number, because the mean of its divisors is an integer number (2943358665975).

Almost surely, 2^{211222220012000} is an apocalyptic number.

211222220012000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222220012000 is an abundant number, since it is smaller than the sum of its proper divisors (353902643855200).

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

211222220012000 is a wasteful number, since it uses less digits than its factorization.

211222220012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95835926 (or 95835908 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211222220012000 its reverse (210022222112), we get a palindrome (211432242234112).

The spelling of 211222220012000 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred twenty million, twelve thousand".