202120102 has 8 divisors (see below), whose sum is σ = 307450512. Its totient is φ = 99636600.

The previous prime is 202120099. The next prime is 202120103. The reversal of 202120102 is 201021202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711549 + ... + 711832.

It is an arithmetic number, because the mean of its divisors is an integer number (38431314).

Almost surely, 2^202120102 is an apocalyptic number.

202120102 is a deficient number, since it is larger than the sum of its proper divisors (105330410).

202120102 is a wasteful number, since it uses less digits than its factorization.

202120102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423454.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 202120102 is about 14216.8949493200. The cubic root of 202120102 is about 586.8626939767.

Adding to 202120102 its reverse (201021202), we get a palindrome (403141304).

The spelling of 202120102 in words is "two hundred two million, one hundred twenty thousand, one hundred two".