101001220121011 has 16 divisors (see below), whose sum is σ = 116733284395200. Its totient is φ = 85595091360768.

The previous prime is 101001220120991. The next prime is 101001220121033. The reversal of 101001220121011 is 110121022100101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101001220121011 - 2⁷ = 101001220120883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101001220120982 and 101001220121000.

It is not an unprimeable number, because it can be changed into a prime (101001220125011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7068955 + ... + 15873643.

It is an arithmetic number, because the mean of its divisors is an integer number (7295830274700).

Almost surely, 2^{101001220121011} is an apocalyptic number.

101001220121011 is a deficient number, since it is larger than the sum of its proper divisors (15732064274189).

101001220121011 is an equidigital number, since it uses as much as digits as its factorization.

101001220121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8823198.

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

Adding to 101001220121011 its reverse (110121022100101), we get a palindrome (211122242221112).

The spelling of 101001220121011 in words is "one hundred one trillion, one billion, two hundred twenty million, one hundred twenty-one thousand, eleven".