212000211112100 has 144 divisors (see below), whose sum is σ = 464015769996240. Its totient is φ = 84070804684800.

The previous prime is 212000211112049. The next prime is 212000211112111. The reversal of 212000211112100 is 1211112000212.

It can be written as a sum of positive squares in 24 ways, for example, as 139631468363776 + 72368742748324 = 11816576^2 + 8506982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7197900974 + ... + 7197930426.

It is an arithmetic number, because the mean of its divisors is an integer number (3222331736085).

Almost surely, 2^{212000211112100} is an apocalyptic number.

212000211112100 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 212000211112100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232007884998120).

212000211112100 is an abundant number, since it is smaller than the sum of its proper divisors (252015558884140).

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

212000211112100 is a wasteful number, since it uses less digits than its factorization.

212000211112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30930 (or 30923 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212000211112100 its reverse (1211112000212), we get a palindrome (213211323112312).

The spelling of 212000211112100 in words is "two hundred twelve trillion, two hundred eleven million, one hundred twelve thousand, one hundred".