1002021221102 has 16 divisors (see below), whose sum is σ = 1639690670592. Its totient is φ = 455458752120.

The previous prime is 1002021221101. The next prime is 1002021221111. The reversal of 1002021221102 is 2011221202001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002021221101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2054243 + ... + 2494785.

It is an arithmetic number, because the mean of its divisors is an integer number (102480666912).

Almost surely, 2^{1002021221102} is an apocalyptic number.

1002021221102 is a deficient number, since it is larger than the sum of its proper divisors (637669449490).

1002021221102 is a wasteful number, since it uses less digits than its factorization.

1002021221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543943.

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

Adding to 1002021221102 its reverse (2011221202001), we get a palindrome (3013242423103).

It can be divided in two parts, 100 and 2021221102, that added together give a palindrome (2021221202).

The spelling of 1002021221102 in words is "one trillion, two billion, twenty-one million, two hundred twenty-one thousand, one hundred two".