42421210211212 has 48 divisors (see below), whose sum is σ = 85650940747008. Its totient is φ = 18007326216000.

The previous prime is 42421210211209. The next prime is 42421210211213. The reversal of 42421210211212 is 21211201212424.

It is not an unprimeable number, because it can be changed into a prime (42421210211213) 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, 15194023 + ... + 17767969.

It is an arithmetic number, because the mean of its divisors is an integer number (1784394598896).

Almost surely, 2^{42421210211212} is an apocalyptic number.

It is an amenable number.

42421210211212 is an abundant number, since it is smaller than the sum of its proper divisors (43229730535796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42421210211212 is a wasteful number, since it uses less digits than its factorization.

42421210211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2579566 (or 2579564 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

Adding to 42421210211212 its reverse (21211201212424), we get a palindrome (63632411423636).

The spelling of 42421210211212 in words is "forty-two trillion, four hundred twenty-one billion, two hundred ten million, two hundred eleven thousand, two hundred twelve".