101221121100011 has 4 divisors (see below), whose sum is σ = 110423041200024. Its totient is φ = 92019201000000.

The previous prime is 101221121099999. The next prime is 101221121100013. The reversal of 101221121100011 is 110001121122101.

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 101221121100011 - 2³⁸ = 100946243193067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221121100013) 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, 4600960049990 + ... + 4600960050011.

It is an arithmetic number, because the mean of its divisors is an integer number (27605760300006).

Almost surely, 2^{101221121100011} is an apocalyptic number.

101221121100011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

101221121100011 is a deficient number, since it is larger than the sum of its proper divisors (9201920100013).

101221121100011 is an equidigital number, since it uses as much as digits as its factorization.

101221121100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9201920100012.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 101221121100011 its reverse (110001121122101), we get a palindrome (211222242222112).

The spelling of 101221121100011 in words is "one hundred one trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred thousand, eleven".