101211122005 has 8 divisors (see below), whose sum is σ = 138803824512. Its totient is φ = 69401912208.

The previous prime is 101211121961. The next prime is 101211122053. The reversal of 101211122005 is 500221112101.

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

It is a cyclic number.

It is not a de Polignac number, because 101211122005 - 2¹⁵ = 101211089237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101211122005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445873137 + ... + 1445873206.

It is an arithmetic number, because the mean of its divisors is an integer number (17350478064).

Almost surely, 2^101211122005 is an apocalyptic number.

It is an amenable number.

101211122005 is a deficient number, since it is larger than the sum of its proper divisors (37592702507).

101211122005 is an equidigital number, since it uses as much as digits as its factorization.

101211122005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891746355.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 101211122005 its reverse (500221112101), we get a palindrome (601432234106).

The spelling of 101211122005 in words is "one hundred one billion, two hundred eleven million, one hundred twenty-two thousand, five".