212001002120120 has 32 divisors (see below), whose sum is σ = 477237579202800. Its totient is φ = 84758565393408.

The previous prime is 212001002120093. The next prime is 212001002120123. The reversal of 212001002120120 is 21021200100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001002120095 and 212001002120104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001002120123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307275865 + ... + 1307438024.

Almost surely, 2^{212001002120120} is an apocalyptic number.

212001002120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212001002120120 is an abundant number, since it is smaller than the sum of its proper divisors (265236577082680).

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

212001002120120 is a wasteful number, since it uses less digits than its factorization.

212001002120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614715927 (or 2614715923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212001002120120 its reverse (21021200100212), we get a palindrome (233022202220332).

The spelling of 212001002120120 in words is "two hundred twelve trillion, one billion, two million, one hundred twenty thousand, one hundred twenty".