1020221112002 has 8 divisors (see below), whose sum is σ = 1533160378812. Its totient is φ = 509167652400.

The previous prime is 1020221111971. The next prime is 1020221112073. The reversal of 1020221112002 is 2002111220201.

It can be written as a sum of positive squares in 2 ways, for example, as 1020061620361 + 159491641 = 1009981^2 + 12629^2 .

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

It is a super-2 number, since 2×1020221112002² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471450449 + ... + 471452612.

Almost surely, 2^{1020221112002} is an apocalyptic number.

1020221112002 is a deficient number, since it is larger than the sum of its proper divisors (512939266810).

1020221112002 is an equidigital number, since it uses as much as digits as its factorization.

1020221112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942903604.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020221112002 its reverse (2002111220201), we get a palindrome (3022332332203).

The spelling of 1020221112002 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twelve thousand, two".