2121241402212 has 24 divisors (see below), whose sum is σ = 5023437352416. Its totient is φ = 696527027328.

The previous prime is 2121241402183. The next prime is 2121241402223. The reversal of 2121241402212 is 2122041421212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319179173 + ... + 1319180780.

It is an arithmetic number, because the mean of its divisors is an integer number (209309889684).

Almost surely, 2^{2121241402212} is an apocalyptic number.

It is an amenable number.

2121241402212 is an abundant number, since it is smaller than the sum of its proper divisors (2902195950204).

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

2121241402212 is a wasteful number, since it uses less digits than its factorization.

2121241402212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638360027 (or 2638360025 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 2121241402212 its reverse (2122041421212), we get a palindrome (4243282823424).

The spelling of 2121241402212 in words is "two trillion, one hundred twenty-one billion, two hundred forty-one million, four hundred two thousand, two hundred twelve".