202101225 has 24 divisors (see below), whose sum is σ = 334636320. Its totient is φ = 107627520.

The previous prime is 202101223. The next prime is 202101241. The reversal of 202101225 is 522101202.

202101225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202101225 - 2¹ = 202101223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (202101223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62857 + ... + 65993.

It is an arithmetic number, because the mean of its divisors is an integer number (13943180).

Almost surely, 2^202101225 is an apocalyptic number.

202101225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

202101225 is a deficient number, since it is larger than the sum of its proper divisors (132535095).

202101225 is a wasteful number, since it uses less digits than its factorization.

202101225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4004 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 202101225 is about 14216.2310406099. The cubic root of 202101225 is about 586.8444234008.

Adding to 202101225 its reverse (522101202), we get a palindrome (724202427).

The spelling of 202101225 in words is "two hundred two million, one hundred one thousand, two hundred twenty-five".