1020221102 has 16 divisors (see below), whose sum is σ = 1676226960. Its totient is φ = 463548288.

The previous prime is 1020221101. The next prime is 1020221113. The reversal of 1020221102 is 2011220201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020221101) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 516368 + ... + 518339.

It is an arithmetic number, because the mean of its divisors is an integer number (104764185).

Almost surely, 2^1020221102 is an apocalyptic number.

1020221102 is a deficient number, since it is larger than the sum of its proper divisors (656005858).

1020221102 is a wasteful number, since it uses less digits than its factorization.

1020221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034755.

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

The square root of 1020221102 is about 31940.9001438594. The cubic root of 1020221102 is about 1006.6954383884.

Adding to 1020221102 its reverse (2011220201), we get a palindrome (3031441303).

Subtracting 1020221102 from its reverse (2011220201), we obtain a palindrome (990999099).

The spelling of 1020221102 in words is "one billion, twenty million, two hundred twenty-one thousand, one hundred two".