201229056 has 144 divisors (see below), whose sum is σ = 680243200. Its totient is φ = 57480192.

The previous prime is 201229027. The next prime is 201229079. The reversal of 201229056 is 650922102.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×201229056² = 80986265957302272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46305 + ... + 50463.

Almost surely, 2^201229056 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 201229056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340121600).

201229056 is an abundant number, since it is smaller than the sum of its proper divisors (479014144).

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

201229056 is an equidigital number, since it uses as much as digits as its factorization.

201229056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4191 (or 4171 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 201229056 is about 14185.5227608996. The cubic root of 201229056 is about 585.9990293018. Note that the first 3 decimals are identical.

The spelling of 201229056 in words is "two hundred one million, two hundred twenty-nine thousand, fifty-six".