1001220110101 has 8 divisors (see below), whose sum is σ = 1024517884544. Its totient is φ = 977922953280.

The previous prime is 1001220110089. The next prime is 1001220110113. The reversal of 1001220110101 is 1010110221001.

It is an interprime number because it is at equal distance from previous prime (1001220110089) and next prime (1001220110113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001220110101 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 (1001220110201) 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 7 ways as a sum of consecutive naturals, for example, 5540941 + ... + 5718781.

It is an arithmetic number, because the mean of its divisors is an integer number (128064735568).

Almost surely, 2^{1001220110101} is an apocalyptic number.

It is an amenable number.

1001220110101 is a deficient number, since it is larger than the sum of its proper divisors (23297774443).

1001220110101 is a wasteful number, since it uses less digits than its factorization.

1001220110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308811.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1001220110101 its reverse (1010110221001), we get a palindrome (2011330331102).

The spelling of 1001220110101 in words is "one trillion, one billion, two hundred twenty million, one hundred ten thousand, one hundred one".