202020102 has 16 divisors (see below), whose sum is σ = 448933680. Its totient is φ = 67340016.

The previous prime is 202020089. The next prime is 202020113. The reversal of 202020102 is 201020202.

It is a super-2 number, since 2×202020102² = 81624243224180808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870503 + ... + 1870610.

It is an arithmetic number, because the mean of its divisors is an integer number (28058355).

Almost surely, 2^202020102 is an apocalyptic number.

202020102 is an abundant number, since it is smaller than the sum of its proper divisors (246913578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202020102 is a wasteful number, since it uses less digits than its factorization.

202020102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741124 (or 3741118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 202020102 is about 14213.3775718511. The cubic root of 202020102 is about 586.7658935266.

Adding to 202020102 its reverse (201020202), we get a palindrome (403040304).

It can be divided in two parts, 2020 and 20102, that added together give a palindrome (22122).

The spelling of 202020102 in words is "two hundred two million, twenty thousand, one hundred two".