212000111011020 has 192 divisors, whose sum is σ = 621645154615296. Its totient is φ = 53916593448960.

The previous prime is 212000111010973. The next prime is 212000111011033. The reversal of 212000111011020 is 20110111000212.

It is a super-2 number, since 2×212000111011020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212000111010987 and 212000111011005.

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, 167328757 + ... + 168590963.

It is an arithmetic number, because the mean of its divisors is an integer number (3237735180288).

Almost surely, 2^{212000111011020} is an apocalyptic number.

212000111011020 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 212000111011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310822577307648).

212000111011020 is an abundant number, since it is smaller than the sum of its proper divisors (409645043604276).

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

212000111011020 is a wasteful number, since it uses less digits than its factorization.

212000111011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263560 (or 1263558 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212000111011020 its reverse (20110111000212), we get a palindrome (232110222011232).

The spelling of 212000111011020 in words is "two hundred twelve trillion, one hundred eleven million, eleven thousand, twenty".