20212400410042 has 8 divisors (see below), whose sum is σ = 30323622763476. Its totient is φ = 10104526155552.

The previous prime is 20212400409979. The next prime is 20212400410079. The reversal of 20212400410042 is 24001400421202.

It can be written as a sum of positive squares in 2 ways, for example, as 17198430115801 + 3013970294241 = 4147099^2 + 1736079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20212400410042² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20212400409995 and 20212400410022.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837009643 + ... + 837033790.

Almost surely, 2^{20212400410042} is an apocalyptic number.

20212400410042 is a deficient number, since it is larger than the sum of its proper divisors (10111222353434).

20212400410042 is a wasteful number, since it uses less digits than its factorization.

20212400410042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674049472.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20212400410042 its reverse (24001400421202), we get a palindrome (44213800831244).

The spelling of 20212400410042 in words is "twenty trillion, two hundred twelve billion, four hundred million, four hundred ten thousand, forty-two".