10011020221221 has 8 divisors (see below), whose sum is σ = 13348137606720. Its totient is φ = 6673958158272.

The previous prime is 10011020221093. The next prime is 10011020221249. The reversal of 10011020221221 is 12212202011001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10011020221221 - 2⁷ = 10011020221093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10011020221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011020241221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13406545 + ... + 14133558.

It is an arithmetic number, because the mean of its divisors is an integer number (1668517200840).

Almost surely, 2^{10011020221221} is an apocalyptic number.

It is an amenable number.

10011020221221 is a deficient number, since it is larger than the sum of its proper divisors (3337117385499).

10011020221221 is a wasteful number, since it uses less digits than its factorization.

10011020221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27661275.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10011020221221 its reverse (12212202011001), we get a palindrome (22223222232222).

The spelling of 10011020221221 in words is "ten trillion, eleven billion, twenty million, two hundred twenty-one thousand, two hundred twenty-one".