42012220031223 has 16 divisors (see below), whose sum is σ = 62271214473216. Its totient is φ = 25019684385120.

The previous prime is 42012220031219. The next prime is 42012220031239. The reversal of 42012220031223 is 32213002221024.

It is not a de Polignac number, because 42012220031223 - 2² = 42012220031219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42012220031193 and 42012220031202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42012220031293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17374779615 + ... + 17374782032.

It is an arithmetic number, because the mean of its divisors is an integer number (3891950904576).

Almost surely, 2^{42012220031223} is an apocalyptic number.

42012220031223 is a deficient number, since it is larger than the sum of its proper divisors (20258994441993).

42012220031223 is a wasteful number, since it uses less digits than its factorization.

42012220031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34749561694.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 42012220031223 its reverse (32213002221024), we get a palindrome (74225222252247).

The spelling of 42012220031223 in words is "forty-two trillion, twelve billion, two hundred twenty million, thirty-one thousand, two hundred twenty-three".