202100022021001 has 16 divisors (see below), whose sum is σ = 217728415739520. Its totient is φ = 186483380227200.

The previous prime is 202100022020971. The next prime is 202100022021013. The reversal of 202100022021001 is 100120220001202.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 202100022021001 - 2⁹ = 202100022020489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202100022021091) 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 15 ways as a sum of consecutive naturals, for example, 2687141085 + ... + 2687216293.

It is an arithmetic number, because the mean of its divisors is an integer number (13608025983720).

Almost surely, 2^{202100022021001} is an apocalyptic number.

It is an amenable number.

202100022021001 is a deficient number, since it is larger than the sum of its proper divisors (15628393718519).

202100022021001 is a wasteful number, since it uses less digits than its factorization.

202100022021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150576.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202100022021001 its reverse (100120220001202), we get a palindrome (302220242022203).

The spelling of 202100022021001 in words is "two hundred two trillion, one hundred billion, twenty-two million, twenty-one thousand, one".