42012221214331 has 4 divisors (see below), whose sum is σ = 42014518614432. Its totient is φ = 42009923814232.

The previous prime is 42012221214329. The next prime is 42012221214347. The reversal of 42012221214331 is 13341212221024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42012221214331 - 2¹ = 42012221214329 is a prime.

It is a super-2 number, since 2×42012221214331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42012221214331.

It is not an unprimeable number, because it can be changed into a prime (42012221214031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148672620 + ... + 1148709193.

It is an arithmetic number, because the mean of its divisors is an integer number (10503629653608).

Almost surely, 2^{42012221214331} is an apocalyptic number.

42012221214331 is a deficient number, since it is larger than the sum of its proper divisors (2297400101).

42012221214331 is a wasteful number, since it uses less digits than its factorization.

42012221214331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297400100.

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

Adding to 42012221214331 its reverse (13341212221024), we get a palindrome (55353433435355).

The spelling of 42012221214331 in words is "forty-two trillion, twelve billion, two hundred twenty-one million, two hundred fourteen thousand, three hundred thirty-one".