102020202 has 32 divisors (see below), whose sum is σ = 234532800. Its totient is φ = 32833584.

The previous prime is 102020189. The next prime is 102020227. The reversal of 102020202 is 202020201.

It is a super-2 number, since 2×102020202² = 20816243232241608, which contains 22 as substring.

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

102020202 is a modest number, since divided by 20202 gives 102 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, 31008 + ... + 34139.

It is an arithmetic number, because the mean of its divisors is an integer number (7329150).

Almost surely, 2^102020202 is an apocalyptic number.

102020202 is an abundant number, since it is smaller than the sum of its proper divisors (132512598).

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

102020202 is a wasteful number, since it uses less digits than its factorization.

102020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65187 (or 65181 counting only the distinct ones).

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

The square root of 102020202 is about 10100.5050368781. The cubic root of 102020202 is about 467.2637173303.

Adding to 102020202 its reverse (202020201), we get a palindrome (304040403).

Subtracting 102020202 from its reverse (202020201), we obtain a palindrome (99999999).

The spelling of 102020202 in words is "one hundred two million, twenty thousand, two hundred two".