101213205 has 8 divisors (see below), whose sum is σ = 161941152. Its totient is φ = 53980368.

The previous prime is 101213201. The next prime is 101213207. The reversal of 101213205 is 502312101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101213205 - 2² = 101213201 is a prime.

It is a super-2 number, since 2×101213205² = 20488225732744050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 6747547 = 101213205 / (1 + 0 + 1 + 2 + 1 + 3 + 2 + 0 + 5).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3373759 + ... + 3373788.

It is an arithmetic number, because the mean of its divisors is an integer number (20242644).

Almost surely, 2^101213205 is an apocalyptic number.

101213205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101213205 is a deficient number, since it is larger than the sum of its proper divisors (60727947).

101213205 is an equidigital number, since it uses as much as digits as its factorization.

101213205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747555.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 101213205 is about 10060.4773743595. The cubic root of 101213205 is about 466.0284094870.

Adding to 101213205 its reverse (502312101), we get a palindrome (603525306).

The spelling of 101213205 in words is "one hundred one million, two hundred thirteen thousand, two hundred five".