101213210 has 32 divisors (see below), whose sum is σ = 208707840. Its totient is φ = 34618752.

The previous prime is 101213207. The next prime is 101213227. The reversal of 101213210 is 12312101.

It is a super-2 number, since 2×101213210² = 20488227757008200, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101213191 and 101213200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32606 + ... + 35574.

It is an arithmetic number, because the mean of its divisors is an integer number (6522120).

Almost surely, 2^101213210 is an apocalyptic number.

101213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101213210 is an abundant number, since it is smaller than the sum of its proper divisors (107494630).

101213210 is a wasteful number, since it uses less digits than its factorization.

101213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101213210 is about 10060.4776228567. The cubic root of 101213210 is about 466.0284171610.

Adding to 101213210 its reverse (12312101), we get a palindrome (113525311).

It can be divided in two parts, 10121 and 3210, that added together give a palindrome (13331).

The spelling of 101213210 in words is "one hundred one million, two hundred thirteen thousand, two hundred ten".