1020100202 has 16 divisors (see below), whose sum is σ = 1685785824. Its totient is φ = 459090000.

The previous prime is 1020100189. The next prime is 1020100217. The reversal of 1020100202 is 2020010201.

It is a self number, because there is not a number n which added to its sum of digits gives 1020100202.

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 7 ways as a sum of consecutive naturals, for example, 227324 + ... + 231767.

It is an arithmetic number, because the mean of its divisors is an integer number (105361614).

Almost surely, 2^1020100202 is an apocalyptic number.

1020100202 is a deficient number, since it is larger than the sum of its proper divisors (665685622).

1020100202 is a wasteful number, since it uses less digits than its factorization.

1020100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459205.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 1020100202 is about 31939.0075299781. The cubic root of 1020100202 is about 1006.6556710980.

Adding to 1020100202 its reverse (2020010201), we get a palindrome (3040110403).

Subtracting 1020100202 from its reverse (2020010201), we obtain a palindrome (999909999).

The spelling of 1020100202 in words is "one billion, twenty million, one hundred thousand, two hundred two".