101221010221011 has 16 divisors (see below), whose sum is σ = 137249515825920. Its totient is φ = 66336600522080.

The previous prime is 101221010220977. The next prime is 101221010221057. The reversal of 101221010221011 is 110122010122101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101221010221011 - 2¹⁴ = 101221010204627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101221010221511) 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, 36830026 + ... + 39482816.

It is an arithmetic number, because the mean of its divisors is an integer number (8578094739120).

Almost surely, 2^{101221010221011} is an apocalyptic number.

101221010221011 is a deficient number, since it is larger than the sum of its proper divisors (36028505604909).

101221010221011 is a wasteful number, since it uses less digits than its factorization.

101221010221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868426.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101221010221011 its reverse (110122010122101), we get a palindrome (211343020343112).

The spelling of 101221010221011 in words is "one hundred one trillion, two hundred twenty-one billion, ten million, two hundred twenty-one thousand, eleven".