101020221221011 has 4 divisors (see below), whose sum is σ = 104278938034624. Its totient is φ = 97761504407400.

The previous prime is 101020221220973. The next prime is 101020221221041. The reversal of 101020221221011 is 110122122020101.

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 101020221221011 - 2¹¹ = 101020221218963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101020221221041) 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 3 ways as a sum of consecutive naturals, for example, 1629358406760 + ... + 1629358406821.

It is an arithmetic number, because the mean of its divisors is an integer number (26069734508656).

Almost surely, 2^{101020221221011} is an apocalyptic number.

101020221221011 is a deficient number, since it is larger than the sum of its proper divisors (3258716813613).

101020221221011 is an equidigital number, since it uses as much as digits as its factorization.

101020221221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258716813612.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101020221221011 its reverse (110122122020101), we get a palindrome (211142343241112).

The spelling of 101020221221011 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, eleven".