10101011201221 has 8 divisors (see below), whose sum is σ = 10267275317600. Its totient is φ = 9934768819440.

The previous prime is 10101011201207. The next prime is 10101011201249. The reversal of 10101011201221 is 12210211010101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10101011201221 - 2¹⁵ = 10101011168453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101011201521) 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, 4495191 + ... + 6356788.

It is an arithmetic number, because the mean of its divisors is an integer number (1283409414700).

Almost surely, 2^{10101011201221} is an apocalyptic number.

It is an amenable number.

10101011201221 is a deficient number, since it is larger than the sum of its proper divisors (166264116379).

10101011201221 is a wasteful number, since it uses less digits than its factorization.

10101011201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10867299.

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

Adding to 10101011201221 its reverse (12210211010101), we get a palindrome (22311222211322).

The spelling of 10101011201221 in words is "ten trillion, one hundred one billion, eleven million, two hundred one thousand, two hundred twenty-one".