101210010001 has 4 divisors (see below), whose sum is σ = 101435422500. Its totient is φ = 100984597504.

The previous prime is 101210009987. The next prime is 101210010019. The reversal of 101210010001 is 100010012101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100010012101 = 383 ⋅261122747.

It can be written as a sum of positive squares in 2 ways, for example, as 79636275601 + 21573734400 = 282199^2 + 146880^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210010001 - 2⁵ = 101210009969 is a prime.

It is a super-2 number, since 2×101210010001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101210010101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112705576 + ... + 112706473.

It is an arithmetic number, because the mean of its divisors is an integer number (25358855625).

Almost surely, 2^101210010001 is an apocalyptic number.

It is an amenable number.

101210010001 is a deficient number, since it is larger than the sum of its proper divisors (225412499).

101210010001 is an equidigital number, since it uses as much as digits as its factorization.

101210010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225412498.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 101210010001 its reverse (100010012101), we get a palindrome (201220022102).

The spelling of 101210010001 in words is "one hundred one billion, two hundred ten million, ten thousand, one".