2121024201212 has 72 divisors (see below), whose sum is σ = 4408899796224. Its totient is φ = 890013132288.

The previous prime is 2121024201187. The next prime is 2121024201227.

It is a happy number.

2121024201212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1419173 + ... + 2501219.

It is an arithmetic number, because the mean of its divisors is an integer number (61234719392).

Almost surely, 2^{2121024201212} 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 2121024201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2204449898112).

2121024201212 is an abundant number, since it is smaller than the sum of its proper divisors (2287875595012).

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

2121024201212 is a wasteful number, since it uses less digits than its factorization.

2121024201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082275 (or 1082266 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The spelling of 2121024201212 in words is "two trillion, one hundred twenty-one billion, twenty-four million, two hundred one thousand, two hundred twelve".