201202101 has 24 divisors (see below), whose sum is σ = 294053760. Its totient is φ = 132563616.

The previous prime is 201202097. The next prime is 201202103. The reversal of 201202101 is 101202102.

It is not a de Polignac number, because 201202101 - 2² = 201202097 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202103) 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, 395035 + ... + 395543.

It is an arithmetic number, because the mean of its divisors is an integer number (12252240).

Almost surely, 2^201202101 is an apocalyptic number.

It is an amenable number.

201202101 is a deficient number, since it is larger than the sum of its proper divisors (92851659).

201202101 is a wasteful number, since it uses less digits than its factorization.

201202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 201202101 is about 14184.5726407249. The cubic root of 201202101 is about 585.9728629196.

Adding to 201202101 its reverse (101202102), we get a palindrome (302404203).

Subtracting from 201202101 its reverse (101202102), we obtain a palindrome (99999999).

The spelling of 201202101 in words is "two hundred one million, two hundred two thousand, one hundred one".