212011001211100 has 288 divisors, whose sum is σ = 567863714396160. Its totient is φ = 66904899747840.

The previous prime is 212011001211067. The next prime is 212011001211101. The reversal of 212011001211100 is 1112100110212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011001211101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5987809597 + ... + 5987845003.

It is an arithmetic number, because the mean of its divisors is an integer number (1971749008320).

Almost surely, 2^{212011001211100} is an apocalyptic number.

212011001211100 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 212011001211100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283931857198080).

212011001211100 is an abundant number, since it is smaller than the sum of its proper divisors (355852713185060).

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

212011001211100 is a wasteful number, since it uses less digits than its factorization.

212011001211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37317 (or 37310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212011001211100 its reverse (1112100110212), we get a palindrome (213123101321312).

The spelling of 212011001211100 in words is "two hundred twelve trillion, eleven billion, one million, two hundred eleven thousand, one hundred".