42121312422232 has 32 divisors (see below), whose sum is σ = 79420524739920. Its totient is φ = 20942525531520.

The previous prime is 42121312422199. The next prime is 42121312422271. The reversal of 42121312422232 is 23222421312124.

It is a junction number, because it is equal to n+sod(n) for n = 42121312422194 and 42121312422203.

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, 15957778 + ... + 18409054.

Almost surely, 2^{42121312422232} is an apocalyptic number.

It is an amenable number.

42121312422232 is a deficient number, since it is larger than the sum of its proper divisors (37299212317688).

42121312422232 is a wasteful number, since it uses less digits than its factorization.

42121312422232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463331 (or 2463327 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 42121312422232 its reverse (23222421312124), we get a palindrome (65343733734356).

The spelling of 42121312422232 in words is "forty-two trillion, one hundred twenty-one billion, three hundred twelve million, four hundred twenty-two thousand, two hundred thirty-two".