2121012000212 has 36 divisors (see below), whose sum is σ = 4366288784340. Its totient is φ = 898791594624.

The previous prime is 2121012000187. The next prime is 2121012000259. The reversal of 2121012000212 is 2120002101212.

It can be written as a sum of positive squares in 2 ways, for example, as 739056579856 + 1381955420356 = 859684^2 + 1175566^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60777443 + ... + 60812330.

It is an arithmetic number, because the mean of its divisors is an integer number (121285799565).

Almost surely, 2^{2121012000212} is an apocalyptic number.

It is an amenable number.

2121012000212 is an abundant number, since it is smaller than the sum of its proper divisors (2245276784128).

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

2121012000212 is a wasteful number, since it uses less digits than its factorization.

2121012000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121589880 (or 121589871 counting only the distinct ones).

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

Adding to 2121012000212 its reverse (2120002101212), we get a palindrome (4241014101424).

The spelling of 2121012000212 in words is "two trillion, one hundred twenty-one billion, twelve million, two hundred twelve", and thus it is an aban number.