101000021000001 has 4 divisors (see below), whose sum is σ = 134666694666672. Its totient is φ = 67333347333332.

The previous prime is 101000020999951. The next prime is 101000021000003. The reversal of 101000021000001 is 100000120000101.

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.

It is a cyclic number.

It is not a de Polignac number, because 101000021000001 - 2¹⁵ = 101000020967233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101000021000003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16833336833331 + ... + 16833336833336.

It is an arithmetic number, because the mean of its divisors is an integer number (33666673666668).

Almost surely, 2^{101000021000001} is an apocalyptic number.

It is an amenable number.

101000021000001 is a deficient number, since it is larger than the sum of its proper divisors (33666673666671).

101000021000001 is an equidigital number, since it uses as much as digits as its factorization.

101000021000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33666673666670.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 101000021000001 its reverse (100000120000101), we get a palindrome (201000141000102).

The spelling of 101000021000001 in words is "one hundred one trillion, twenty-one million, one", and thus it is an aban number.