1010001222101 has 4 divisors (see below), whose sum is σ = 1020413605932. Its totient is φ = 999588838272.

The previous prime is 1010001222077. The next prime is 1010001222107. The reversal of 1010001222101 is 1012221000101.

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 175703488900 + 834297733201 = 419170^2 + 913399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010001222101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010001222107) 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, 5206191770 + ... + 5206191963.

It is an arithmetic number, because the mean of its divisors is an integer number (255103401483).

Almost surely, 2^{1010001222101} is an apocalyptic number.

It is an amenable number.

1010001222101 is a deficient number, since it is larger than the sum of its proper divisors (10412383831).

1010001222101 is an equidigital number, since it uses as much as digits as its factorization.

1010001222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412383830.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1010001222101 its reverse (1012221000101), we get a palindrome (2022222222202).

The spelling of 1010001222101 in words is "one trillion, ten billion, one million, two hundred twenty-two thousand, one hundred one".