101210011001 has 4 divisors (see below), whose sum is σ = 110410921104. Its totient is φ = 92009100900.

The previous prime is 101210010949. The next prime is 101210011013. The reversal of 101210011001 is 100110012101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100110012101 = 11 ⋅9100910191.

It is a cyclic number.

It is not a de Polignac number, because 101210011001 - 2²² = 101205816697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101210011001.

It is not an unprimeable number, because it can be changed into a prime (101210041001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4600455035 + ... + 4600455056.

It is an arithmetic number, because the mean of its divisors is an integer number (27602730276).

Almost surely, 2^101210011001 is an apocalyptic number.

101210011001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101210011001 is a deficient number, since it is larger than the sum of its proper divisors (9200910103).

101210011001 is an equidigital number, since it uses as much as digits as its factorization.

101210011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9200910102.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 101210011001 its reverse (100110012101), we get a palindrome (201320023102).

The spelling of 101210011001 in words is "one hundred one billion, two hundred ten million, eleven thousand, one".