212001222102020 has 96 divisors (see below), whose sum is σ = 480808045186560. Its totient is φ = 78055582026240.

The previous prime is 212001222102013. The next prime is 212001222102079. The reversal of 212001222102020 is 20201222100212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212001222102020.

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, 386384075 + ... + 386932365.

It is an arithmetic number, because the mean of its divisors is an integer number (5008417137360).

Almost surely, 2^{212001222102020} is an apocalyptic number.

212001222102020 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 212001222102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240404022593280).

212001222102020 is an abundant number, since it is smaller than the sum of its proper divisors (268806823084540).

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

212001222102020 is a wasteful number, since it uses less digits than its factorization.

212001222102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552525 (or 552523 counting only the distinct ones).

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

Adding to 212001222102020 its reverse (20201222100212), we get a palindrome (232202444202232).

The spelling of 212001222102020 in words is "two hundred twelve trillion, one billion, two hundred twenty-two million, one hundred two thousand, twenty".