1210821424142 has 32 divisors (see below), whose sum is σ = 1996853472000. Its totient is φ = 546078937600.

The previous prime is 1210821424081. The next prime is 1210821424151. The reversal of 1210821424142 is 2414241280121.

It is a super-3 number, since 3×1210821424142³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1210821424099 and 1210821424108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1425767 + ... + 2110557.

It is an arithmetic number, because the mean of its divisors is an integer number (62401671000).

Almost surely, 2^{1210821424142} is an apocalyptic number.

1210821424142 is a deficient number, since it is larger than the sum of its proper divisors (786032047858).

1210821424142 is a wasteful number, since it uses less digits than its factorization.

1210821424142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685432.

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 1210821424142 in words is "one trillion, two hundred ten billion, eight hundred twenty-one million, four hundred twenty-four thousand, one hundred forty-two".