202111072 has 48 divisors (see below), whose sum is σ = 416102400. Its totient is φ = 96520320.

The previous prime is 202111001. The next prime is 202111073. The reversal of 202111072 is 270111202.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77079 + ... + 79657.

It is an arithmetic number, because the mean of its divisors is an integer number (8668800).

Almost surely, 2^202111072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202111072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208051200).

202111072 is an abundant number, since it is smaller than the sum of its proper divisors (213991328).

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

202111072 is a wasteful number, since it uses less digits than its factorization.

202111072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2699 (or 2691 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 202111072 is about 14216.5773658782. The cubic root of 202111072 is about 586.8539542076.

Adding to 202111072 its reverse (270111202), we get a palindrome (472222274).

The spelling of 202111072 in words is "two hundred two million, one hundred eleven thousand, seventy-two".