210101011012001 has 4 divisors (see below), whose sum is σ = 210101446993812. Its totient is φ = 210100575030192.

The previous prime is 210101011011887. The next prime is 210101011012003. The reversal of 210101011012001 is 100210110101012.

210101011012001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35096157488401 + 175004853523600 = 5924201^2 + 13228940^2 .

It is a cyclic number.

It is not a de Polignac number, because 210101011012001 - 2²² = 210101006817697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210101011012003) 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, 217267250 + ... + 218232123.

It is an arithmetic number, because the mean of its divisors is an integer number (52525361748453).

Almost surely, 2^{210101011012001} is an apocalyptic number.

It is an amenable number.

210101011012001 is a deficient number, since it is larger than the sum of its proper divisors (435981811).

210101011012001 is an equidigital number, since it uses as much as digits as its factorization.

210101011012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435981810.

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

Adding to 210101011012001 its reverse (100210110101012), we get a palindrome (310311121113013).

The spelling of 210101011012001 in words is "two hundred ten trillion, one hundred one billion, eleven million, twelve thousand, one".