212021200111200 has 144 divisors (see below), whose sum is σ = 706961421479376. Its totient is φ = 55159986995200.

The previous prime is 212021200111117. The next prime is 212021200111261. The reversal of 212021200111200 is 2111002120212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212021200111200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077245097 + ... + 1077441896.

It is an arithmetic number, because the mean of its divisors is an integer number (4909454315829).

Almost surely, 2^{212021200111200} is an apocalyptic number.

212021200111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021200111200 is an abundant number, since it is smaller than the sum of its proper divisors (494940221368176).

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

212021200111200 is a wasteful number, since it uses less digits than its factorization.

212021200111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2154687057 (or 2154687044 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212021200111200 its reverse (2111002120212), we get a palindrome (214132202231412).

The spelling of 212021200111200 in words is "two hundred twelve trillion, twenty-one billion, two hundred million, one hundred eleven thousand, two hundred".