1202122320042 has 64 divisors (see below), whose sum is σ = 2775943526400. Its totient is φ = 339940981440.

The previous prime is 1202122320031. The next prime is 1202122320059. The reversal of 1202122320042 is 2400232212021.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 4064317 + ... + 4350047.

It is an arithmetic number, because the mean of its divisors is an integer number (43374117600).

Almost surely, 2^{1202122320042} is an apocalyptic number.

1202122320042 is an abundant number, since it is smaller than the sum of its proper divisors (1573821206358).

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

1202122320042 is a wasteful number, since it uses less digits than its factorization.

1202122320042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286771.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1202122320042 its reverse (2400232212021), we get a palindrome (3602354532063).

The spelling of 1202122320042 in words is "one trillion, two hundred two billion, one hundred twenty-two million, three hundred twenty thousand, forty-two".