2121400041212 has 12 divisors (see below), whose sum is σ = 3907842181320. Its totient is φ = 1004873703696.

The previous prime is 2121400041199. The next prime is 2121400041247.

2121400041212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13956579143 + ... + 13956579294.

It is an arithmetic number, because the mean of its divisors is an integer number (325653515110).

Almost surely, 2^{2121400041212} is an apocalyptic number.

It is an amenable number.

2121400041212 is a deficient number, since it is larger than the sum of its proper divisors (1786442140108).

2121400041212 is a wasteful number, since it uses less digits than its factorization.

2121400041212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27913158460 (or 27913158458 counting only the distinct ones).

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

It can be divided in two parts, 21214000 and 41212, that added together give a palindrome (21255212).

The spelling of 2121400041212 in words is "two trillion, one hundred twenty-one billion, four hundred million, forty-one thousand, two hundred twelve".