202101216 has 96 divisors (see below), whose sum is σ = 544320000. Its totient is φ = 65640960.

The previous prime is 202101199. The next prime is 202101217. The reversal of 202101216 is 612101202.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 202101195 and 202101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1015485 + ... + 1015683.

It is an arithmetic number, because the mean of its divisors is an integer number (5670000).

Almost surely, 2^202101216 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 202101216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272160000).

202101216 is an abundant number, since it is smaller than the sum of its proper divisors (342218784).

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

202101216 is a wasteful number, since it uses less digits than its factorization.

202101216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 424 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 202101216 is about 14216.2307240703. The cubic root of 202101216 is about 586.8444146897.

Adding to 202101216 its reverse (612101202), we get a palindrome (814202418).

The spelling of 202101216 in words is "two hundred two million, one hundred one thousand, two hundred sixteen".