2121030301212 has 144 divisors (see below), whose sum is σ = 5853604192800. Its totient is φ = 645243148800.

The previous prime is 2121030301183. The next prime is 2121030301223.

2121030301212 is a `hidden beast` number, since 2 + 121 + 0 + 30 + 301 + 212 = 666.

2121030301212 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2141214 + ... + 2971002.

Almost surely, 2^{2121030301212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121030301212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2926802096400).

2121030301212 is an abundant number, since it is smaller than the sum of its proper divisors (3732573891588).

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

2121030301212 is a wasteful number, since it uses less digits than its factorization.

2121030301212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829956 (or 829951 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

It can be divided in two parts, 2121030 and 301212, that added together give a palindrome (2422242).

The spelling of 2121030301212 in words is "two trillion, one hundred twenty-one billion, thirty million, three hundred one thousand, two hundred twelve".