212020111222000 has 320 divisors, whose sum is σ = 535919507884800. Its totient is φ = 81023577600000.

The previous prime is 212020111221991. The next prime is 212020111222037. The reversal of 212020111222000 is 222111020212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10479951885 + ... + 10479972115.

It is an arithmetic number, because the mean of its divisors is an integer number (1674748462140).

Almost surely, 2^{212020111222000} is an apocalyptic number.

212020111222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212020111222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267959753942400).

212020111222000 is an abundant number, since it is smaller than the sum of its proper divisors (323899396662800).

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

212020111222000 is a wasteful number, since it uses less digits than its factorization.

212020111222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22173 (or 22157 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212020111222000 its reverse (222111020212), we get a palindrome (212242222242212).

The spelling of 212020111222000 in words is "two hundred twelve trillion, twenty billion, one hundred eleven million, two hundred twenty-two thousand".