20021102000201 has 4 divisors (see below), whose sum is σ = 20143930846992. Its totient is φ = 19898273153412.

The previous prime is 20021102000183. The next prime is 20021102000233. The reversal of 20021102000201 is 10200020112002.

It is a happy number.

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 20021102000201 - 2²⁶ = 20021034891337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20021102000701) 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 3 ways as a sum of consecutive naturals, for example, 61414423151 + ... + 61414423476.

It is an arithmetic number, because the mean of its divisors is an integer number (5035982711748).

Almost surely, 2^{20021102000201} is an apocalyptic number.

It is an amenable number.

20021102000201 is a deficient number, since it is larger than the sum of its proper divisors (122828846791).

20021102000201 is a wasteful number, since it uses less digits than its factorization.

20021102000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122828846790.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20021102000201 its reverse (10200020112002), we get a palindrome (30221122112203).

The spelling of 20021102000201 in words is "twenty trillion, twenty-one billion, one hundred two million, two hundred one", and thus it is an aban number.