42124130213212 has 24 divisors (see below), whose sum is σ = 74935171967040. Its totient is φ = 20714168314560.

The previous prime is 42124130213203. The next prime is 42124130213237. The reversal of 42124130213212 is 21231203142124.

It is a congruent number.

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, 8968123 + ... + 12832594.

It is an arithmetic number, because the mean of its divisors is an integer number (3122298831960).

Almost surely, 2^{42124130213212} is an apocalyptic number.

It is an amenable number.

42124130213212 is a deficient number, since it is larger than the sum of its proper divisors (32811041753828).

42124130213212 is a wasteful number, since it uses less digits than its factorization.

42124130213212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21808701 (or 21808699 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 42124130213212 its reverse (21231203142124), we get a palindrome (63355333355336).

The spelling of 42124130213212 in words is "forty-two trillion, one hundred twenty-four billion, one hundred thirty million, two hundred thirteen thousand, two hundred twelve".