10201222120121 has 16 divisors (see below), whose sum is σ = 10728997171200. Its totient is φ = 9680473490688.

The previous prime is 10201222120091. The next prime is 10201222120129. The reversal of 10201222120121 is 12102122210201.

It is a cyclic number.

It is not a de Polignac number, because 10201222120121 - 2¹⁰ = 10201222119097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10201222120121.

It is not an unprimeable number, because it can be changed into a prime (10201222120129) 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, 96249485 + ... + 96355413.

It is an arithmetic number, because the mean of its divisors is an integer number (670562323200).

Almost surely, 2^{10201222120121} is an apocalyptic number.

It is an amenable number.

10201222120121 is a deficient number, since it is larger than the sum of its proper divisors (527775051079).

10201222120121 is a wasteful number, since it uses less digits than its factorization.

10201222120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139048.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10201222120121 its reverse (12102122210201), we get a palindrome (22303344330322).

The spelling of 10201222120121 in words is "ten trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".