253201212 has 108 divisors (see below), whose sum is σ = 722984808. Its totient is φ = 74606400.

The previous prime is 253201187. The next prime is 253201217. The reversal of 253201212 is 212102352.

253201212 is a `hidden beast` number, since 253 + 201 + 212 = 666.

It is a super-2 number, since 2×253201212² = 128221707516537888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253201217) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160387 + ... + 161957.

Almost surely, 2^253201212 is an apocalyptic number.

253201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361492404).

253201212 is an abundant number, since it is smaller than the sum of its proper divisors (469783596).

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

253201212 is a wasteful number, since it uses less digits than its factorization.

253201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640 (or 1624 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 253201212 is about 15912.2975085309. The cubic root of 253201212 is about 632.6379787197.

Adding to 253201212 its reverse (212102352), we get a palindrome (465303564).

The spelling of 253201212 in words is "two hundred fifty-three million, two hundred one thousand, two hundred twelve".