142421320212 has 12 divisors (see below), whose sum is σ = 332316413856. Its totient is φ = 47473773400.

The previous prime is 142421320211. The next prime is 142421320229. The reversal of 142421320212 is 212023124241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142421320211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5934221664 + ... + 5934221687.

It is an arithmetic number, because the mean of its divisors is an integer number (27693034488).

Almost surely, 2^142421320212 is an apocalyptic number.

142421320212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142421320212 is an abundant number, since it is smaller than the sum of its proper divisors (189895093644).

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

142421320212 is a wasteful number, since it uses less digits than its factorization.

142421320212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868443358 (or 11868443356 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 142421320212 its reverse (212023124241), we get a palindrome (354444444453).

The spelling of 142421320212 in words is "one hundred forty-two billion, four hundred twenty-one million, three hundred twenty thousand, two hundred twelve".