42312221213212 has 12 divisors (see below), whose sum is σ = 74072803977256. Its totient is φ = 21148562934000.

The previous prime is 42312221213177. The next prime is 42312221213299. The reversal of 42312221213212 is 21231212221324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886905539 + ... + 1886927962.

Almost surely, 2^{42312221213212} is an apocalyptic number.

It is an amenable number.

42312221213212 is a deficient number, since it is larger than the sum of its proper divisors (31760582764044).

42312221213212 is a wasteful number, since it uses less digits than its factorization.

42312221213212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773836308 (or 3773836306 counting only the distinct ones).

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

Adding to 42312221213212 its reverse (21231212221324), we get a palindrome (63543433434536).

The spelling of 42312221213212 in words is "forty-two trillion, three hundred twelve billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred twelve".