101211715 has 16 divisors (see below), whose sum is σ = 134999136. Its totient is φ = 72217600.

The previous prime is 101211703. The next prime is 101211731. The reversal of 101211715 is 517112101.

It is not a de Polignac number, because 101211715 - 2⁹ = 101211203 is a prime.

It is a super-2 number, since 2×101211715² = 20487622506482450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101211692 and 101211701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14446 + ... + 20275.

It is an arithmetic number, because the mean of its divisors is an integer number (8437446).

Almost surely, 2^101211715 is an apocalyptic number.

101211715 is a deficient number, since it is larger than the sum of its proper divisors (33787421).

101211715 is a wasteful number, since it uses less digits than its factorization.

101211715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34790.

The product of its (nonzero) digits is 70, while the sum is 19.

The square root of 101211715 is about 10060.4033219350. The cubic root of 101211715 is about 466.0261226123.

Adding to 101211715 its reverse (517112101), we get a palindrome (618323816).

It can be divided in two parts, 101211 and 715, that added together give a triangular number (101926 = T₄₅₁).

The spelling of 101211715 in words is "one hundred one million, two hundred eleven thousand, seven hundred fifteen".