101213211 has 16 divisors (see below), whose sum is σ = 148681728. Its totient is φ = 60732000.

The previous prime is 101213207. The next prime is 101213227. The reversal of 101213211 is 112312101.

It is not a de Polignac number, because 101213211 - 2² = 101213207 is a prime.

It is a super-2 number, since 2×101213211² = 20488228161861042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101213201) 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, 11851 + ... + 18516.

It is an arithmetic number, because the mean of its divisors is an integer number (9292608).

Almost surely, 2^101213211 is an apocalyptic number.

101213211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101213211 is a deficient number, since it is larger than the sum of its proper divisors (47468517).

101213211 is a wasteful number, since it uses less digits than its factorization.

101213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30482.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 101213211 is about 10060.4776725561. The cubic root of 101213211 is about 466.0284186958.

Adding to 101213211 its reverse (112312101), we get a palindrome (213525312).

It can be divided in two parts, 101 and 213211, that added together give a palindrome (213312).

The spelling of 101213211 in words is "one hundred one million, two hundred thirteen thousand, two hundred eleven".