101221121000011 has 4 divisors (see below), whose sum is σ = 104711504482800. Its totient is φ = 97730737517224.

The previous prime is 101221120999963. The next prime is 101221121000089. The reversal of 101221121000011 is 110000121122101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101221121000011 - 2⁹ = 101221120999499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101221120999955 and 101221121000000.

It is not an unprimeable number, because it can be changed into a prime (101221121000911) 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, 1745191741351 + ... + 1745191741408.

It is an arithmetic number, because the mean of its divisors is an integer number (26177876120700).

Almost surely, 2^{101221121000011} is an apocalyptic number.

101221121000011 is a deficient number, since it is larger than the sum of its proper divisors (3490383482789).

101221121000011 is an equidigital number, since it uses as much as digits as its factorization.

101221121000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3490383482788.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101221121000011 its reverse (110000121122101), we get a palindrome (211221242122112).

The spelling of 101221121000011 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty-one million, eleven", and thus it is an aban number.