101211218 has 32 divisors (see below), whose sum is σ = 163537920. Its totient is φ = 46872000.

The previous prime is 101211211. The next prime is 101211221. The reversal of 101211218 is 812112101.

It is a junction number, because it is equal to n+sod(n) for n = 101211196 and 101211205.

It is not an unprimeable number, because it can be changed into a prime (101211211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325283 + ... + 325593.

It is an arithmetic number, because the mean of its divisors is an integer number (5110560).

Almost surely, 2^101211218 is an apocalyptic number.

101211218 is a deficient number, since it is larger than the sum of its proper divisors (62326702).

101211218 is a wasteful number, since it uses less digits than its factorization.

101211218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554.

The product of its (nonzero) digits is 32, while the sum is 17.

The square root of 101211218 is about 10060.3786211057. The cubic root of 101211218 is about 466.0253598042.

Adding to 101211218 its reverse (812112101), we get a palindrome (913323319).

The spelling of 101211218 in words is "one hundred one million, two hundred eleven thousand, two hundred eighteen".