101001012021011 has 4 divisors (see below), whose sum is σ = 101001032777400. Its totient is φ = 101000991264624.

The previous prime is 101001012020999. The next prime is 101001012021017. The reversal of 101001012021011 is 110120210100101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101001012021011 - 2¹⁰ = 101001012019987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001012020983 and 101001012021001.

It is not an unprimeable number, because it can be changed into a prime (101001012021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304735 + ... + 14272503.

It is an arithmetic number, because the mean of its divisors is an integer number (25250258194350).

Almost surely, 2^{101001012021011} is an apocalyptic number.

101001012021011 is a deficient number, since it is larger than the sum of its proper divisors (20756389).

101001012021011 is an equidigital number, since it uses as much as digits as its factorization.

101001012021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20756388.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 101001012021011 its reverse (110120210100101), we get a palindrome (211121222121112).

The spelling of 101001012021011 in words is "one hundred one trillion, one billion, twelve million, twenty-one thousand, eleven".