4042121212997 has 12 divisors (see below), whose sum is σ = 4705724337696. Its totient is φ = 3461974823160.

The previous prime is 4042121212981. The next prime is 4042121213017. The reversal of 4042121212997 is 7992121212404.

It is a happy number.

It is not a de Polignac number, because 4042121212997 - 2⁴ = 4042121212981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042121212907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32085329 + ... + 32211062.

It is an arithmetic number, because the mean of its divisors is an integer number (392143694808).

Almost surely, 2^{4042121212997} is an apocalyptic number.

It is an amenable number.

4042121212997 is a deficient number, since it is larger than the sum of its proper divisors (663603124699).

4042121212997 is a wasteful number, since it uses less digits than its factorization.

4042121212997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64297688 (or 64297681 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 4042121212997 in words is "four trillion, forty-two billion, one hundred twenty-one million, two hundred twelve thousand, nine hundred ninety-seven".