201021214 has 16 divisors (see below), whose sum is σ = 312404400. Its totient is φ = 96897024.

The previous prime is 201021211. The next prime is 201021229. The reversal of 201021214 is 412120102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201021194 and 201021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42349 + ... + 46855.

It is an arithmetic number, because the mean of its divisors is an integer number (19525275).

Almost surely, 2^201021214 is an apocalyptic number.

201021214 is a deficient number, since it is larger than the sum of its proper divisors (111383186).

201021214 is a wasteful number, since it uses less digits than its factorization.

201021214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5307.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 201021214 is about 14178.1950191130. The cubic root of 201021214 is about 585.7972076078.

Adding to 201021214 its reverse (412120102), we get a palindrome (613141316).

It can be divided in two parts, 20102 and 1214, that added together give a square (21316 = 146²).

The spelling of 201021214 in words is "two hundred one million, twenty-one thousand, two hundred fourteen".