212001200122120 has 32 divisors (see below), whose sum is σ = 481223963119320. Its totient is φ = 84050033320960.

The previous prime is 212001200122109. The next prime is 212001200122141. The reversal of 212001200122120 is 21221002100212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 179279299388484 + 32721900733636 = 13389522^2 + 5720306^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212001200122094 and 212001200122103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23451455671 + ... + 23451464710.

Almost surely, 2^{212001200122120} is an apocalyptic number.

212001200122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001200122120 is an abundant number, since it is smaller than the sum of its proper divisors (269222762997200).

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

212001200122120 is a wasteful number, since it uses less digits than its factorization.

212001200122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46902920505 (or 46902920501 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212001200122120 its reverse (21221002100212), we get a palindrome (233222202222332).

The spelling of 212001200122120 in words is "two hundred twelve trillion, one billion, two hundred million, one hundred twenty-two thousand, one hundred twenty".