1021222112002 has 8 divisors (see below), whose sum is σ = 1537363252476. Its totient is φ = 508767694512.

The previous prime is 1021222111939. The next prime is 1021222112069. The reversal of 1021222112002 is 2002112221201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1002663771561 + 18558340441 = 1001331^2 + 136229^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 921680053 + ... + 921681160.

Almost surely, 2^{1021222112002} is an apocalyptic number.

1021222112002 is a deficient number, since it is larger than the sum of its proper divisors (516141140474).

1021222112002 is a wasteful number, since it uses less digits than its factorization.

1021222112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843361492.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021222112002 its reverse (2002112221201), we get a palindrome (3023334333203).

The spelling of 1021222112002 in words is "one trillion, twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two".