201211215 has 32 divisors (see below), whose sum is σ = 326695680. Its totient is φ = 105740544.

The previous prime is 201211189. The next prime is 201211229. The reversal of 201211215 is 512112102.

It is not a de Polignac number, because 201211215 - 2⁸ = 201210959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 201211194 and 201211203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 367572 + ... + 368118.

It is an arithmetic number, because the mean of its divisors is an integer number (10209240).

Almost surely, 2^201211215 is an apocalyptic number.

201211215 is a deficient number, since it is larger than the sum of its proper divisors (125484465).

201211215 is a wasteful number, since it uses less digits than its factorization.

201211215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 201211215 is about 14184.8939016124. The cubic root of 201211215 is about 585.9817105343.

Adding to 201211215 its reverse (512112102), we get a palindrome (713323317).

The spelling of 201211215 in words is "two hundred one million, two hundred eleven thousand, two hundred fifteen".