212101010012120 has 32 divisors (see below), whose sum is σ = 481952295036720. Its totient is φ = 84000400003200.

The previous prime is 212101010012119. The next prime is 212101010012123. The reversal of 212101010012120 is 21210010101212.

It is a super-2 number, since 2×212101010012120² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212101010012095 and 212101010012104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101010012123) 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, 26250120962 + ... + 26250129041.

Almost surely, 2^{212101010012120} is an apocalyptic number.

212101010012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101010012120 is an abundant number, since it is smaller than the sum of its proper divisors (269851285024600).

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

212101010012120 is a wasteful number, since it uses less digits than its factorization.

212101010012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52500250115 (or 52500250111 counting only the distinct ones).

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

Adding to 212101010012120 its reverse (21210010101212), we get a palindrome (233311020113332).

The spelling of 212101010012120 in words is "two hundred twelve trillion, one hundred one billion, ten million, twelve thousand, one hundred twenty".