21412104010242 has 32 divisors (see below), whose sum is σ = 46837413829440. Its totient is φ = 6471836368320.

The previous prime is 21412104010211. The next prime is 21412104010249. The reversal of 21412104010242 is 24201040121412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21412104010249) 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, 416974093 + ... + 417025440.

It is an arithmetic number, because the mean of its divisors is an integer number (1463669182170).

Almost surely, 2^{21412104010242} is an apocalyptic number.

21412104010242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21412104010242 is an abundant number, since it is smaller than the sum of its proper divisors (25425309819198).

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

21412104010242 is a wasteful number, since it uses less digits than its factorization.

21412104010242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833999938.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 21412104010242 its reverse (24201040121412), we get a palindrome (45613144131654).

The spelling of 21412104010242 in words is "twenty-one trillion, four hundred twelve billion, one hundred four million, ten thousand, two hundred forty-two".