1011221100101 has 8 divisors (see below), whose sum is σ = 1069641856320. Its totient is φ = 954004895712.

The previous prime is 1011221100017. The next prime is 1011221100119. The reversal of 1011221100101 is 1010011221101.

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-1011221100101 is a prime.

It is a super-2 number, since 2×1011221100101² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011221100301) 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, 301136231 + ... + 301139588.

It is an arithmetic number, because the mean of its divisors is an integer number (133705232040).

Almost surely, 2^{1011221100101} is an apocalyptic number.

It is an amenable number.

1011221100101 is a deficient number, since it is larger than the sum of its proper divisors (58420756219).

1011221100101 is an equidigital number, since it uses as much as digits as its factorization.

1011221100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602275915.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1011221100101 its reverse (1010011221101), we get a palindrome (2021232321202).

The spelling of 1011221100101 in words is "one trillion, eleven billion, two hundred twenty-one million, one hundred thousand, one hundred one".