201252220 has 24 divisors (see below), whose sum is σ = 455140224. Its totient is φ = 74308416.

The previous prime is 201252203. The next prime is 201252221. The reversal of 201252220 is 22252102.

It is a junction number, because it is equal to n+sod(n) for n = 201252194 and 201252203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201252221) 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, 386764 + ... + 387283.

It is an arithmetic number, because the mean of its divisors is an integer number (18964176).

Almost surely, 2^201252220 is an apocalyptic number.

201252220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201252220 is an abundant number, since it is smaller than the sum of its proper divisors (253888004).

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

201252220 is a wasteful number, since it uses less digits than its factorization.

201252220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774069 (or 774067 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 201252220 is about 14186.3392036142. The cubic root of 201252220 is about 586.0215137298.

The spelling of 201252220 in words is "two hundred one million, two hundred fifty-two thousand, two hundred twenty".