20100222100001 has 4 divisors (see below), whose sum is σ = 20100347935812. Its totient is φ = 20100096264192.

The previous prime is 20100222099989. The next prime is 20100222100087. The reversal of 20100222100001 is 10000122200102.

It is a happy number.

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 7642040051776 + 12458182048225 = 2764424^2 + 3529615^2 .

It is a cyclic number.

It is not a de Polignac number, because 20100222100001 - 2¹⁰ = 20100222098977 is a prime.

It is a super-2 number, since 2×20100222100001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100222103001) 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, 62678000 + ... + 62997873.

It is an arithmetic number, because the mean of its divisors is an integer number (5025086983953).

Almost surely, 2^{20100222100001} is an apocalyptic number.

It is an amenable number.

20100222100001 is a deficient number, since it is larger than the sum of its proper divisors (125835811).

20100222100001 is a wasteful number, since it uses less digits than its factorization.

20100222100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125835810.

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

Adding to 20100222100001 its reverse (10000122200102), we get a palindrome (30100344300103).

The spelling of 20100222100001 in words is "twenty trillion, one hundred billion, two hundred twenty-two million, one hundred thousand, one".