101210005 has 16 divisors (see below), whose sum is σ = 136483200. Its totient is φ = 71489088.

The previous prime is 101209991. The next prime is 101210077. The reversal of 101210005 is 500012101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101210005 - 2⁵ = 101209973 is a prime.

It is a super-2 number, since 2×101210005² = 20486930224200050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101209973 and 101210000.

It is a congruent number.

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, 32355 + ... + 35344.

It is an arithmetic number, because the mean of its divisors is an integer number (8530200).

Almost surely, 2^101210005 is an apocalyptic number.

It is an amenable number.

101210005 is a deficient number, since it is larger than the sum of its proper divisors (35273195).

101210005 is a wasteful number, since it uses less digits than its factorization.

101210005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67740.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 101210005 is about 10060.3183349236. The cubic root of 101210005 is about 466.0234980507.

Adding to 101210005 its reverse (500012101), we get a palindrome (601222106).

The spelling of 101210005 in words is "one hundred one million, two hundred ten thousand, five".