101212021221001 has 16 divisors (see below), whose sum is σ = 102989329553088. Its totient is φ = 99442881172800.

The previous prime is 101212021220977. The next prime is 101212021221007. The reversal of 101212021221001 is 100122120212101.

It is a cyclic number.

It is not a de Polignac number, because 101212021221001 - 2⁵ = 101212021220969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101212021221007) 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 15 ways as a sum of consecutive naturals, for example, 39940486 + ... + 42398896.

It is an arithmetic number, because the mean of its divisors is an integer number (6436833097068).

Almost surely, 2^{101212021221001} is an apocalyptic number.

It is an amenable number.

101212021221001 is a deficient number, since it is larger than the sum of its proper divisors (1777308332087).

101212021221001 is an equidigital number, since it uses as much as digits as its factorization.

101212021221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2460072.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101212021221001 its reverse (100122120212101), we get a palindrome (201334141433102).

The spelling of 101212021221001 in words is "one hundred one trillion, two hundred twelve billion, twenty-one million, two hundred twenty-one thousand, one".