1022021001002 has 8 divisors (see below), whose sum is σ = 1533036562500. Its totient is φ = 511008813504.

The previous prime is 1022021000983. The next prime is 1022021001041. The reversal of 1022021001002 is 2001001202201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 910919445241 + 111101555761 = 954421^2 + 333319^2 .

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

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, 145874 + ... + 1437122.

Almost surely, 2^{1022021001002} is an apocalyptic number.

1022021001002 is a deficient number, since it is larger than the sum of its proper divisors (511015561498).

1022021001002 is a wasteful number, since it uses less digits than its factorization.

1022021001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687000.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1022021001002 its reverse (2001001202201), we get a palindrome (3023022203203).

The spelling of 1022021001002 in words is "one trillion, twenty-two billion, twenty-one million, one thousand, two".