1021202020202 has 32 divisors (see below), whose sum is σ = 1891358187264. Its totient is φ = 402692976000.

The previous prime is 1021202020187. The next prime is 1021202020249. The reversal of 1021202020202 is 2020202021201.

It is a super-2 number, since 2×1021202020202² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

1021202020202 is a modest number, since divided by 2020202 gives 10212 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8964299 + ... + 9077502.

It is an arithmetic number, because the mean of its divisors is an integer number (59104943352).

Almost surely, 2^{1021202020202} is an apocalyptic number.

1021202020202 is a deficient number, since it is larger than the sum of its proper divisors (870156167062).

1021202020202 is a wasteful number, since it uses less digits than its factorization.

1021202020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18042134.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1021202020202 its reverse (2020202021201), we get a palindrome (3041404041403).

Subtracting 1021202020202 from its reverse (2020202021201), we obtain a palindrome (999000000999).

It can be divided in two parts, 10 and 21202020202, that added together give a palindrome (21202020212).

The spelling of 1021202020202 in words is "one trillion, twenty-one billion, two hundred two million, twenty thousand, two hundred two".