10221210021101 has 4 divisors (see below), whose sum is σ = 10573665539100. Its totient is φ = 9868754503104.

The previous prime is 10221210021017. The next prime is 10221210021107. The reversal of 10221210021101 is 10112001212201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7112515624900 + 3108694396201 = 2666930^2 + 1763149^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221210021101 - 2³⁰ = 10220136279277 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 (10221210021107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176227758956 + ... + 176227759013.

It is an arithmetic number, because the mean of its divisors is an integer number (2643416384775).

Almost surely, 2^{10221210021101} is an apocalyptic number.

It is an amenable number.

10221210021101 is a deficient number, since it is larger than the sum of its proper divisors (352455517999).

10221210021101 is an equidigital number, since it uses as much as digits as its factorization.

10221210021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352455517998.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221210021101 its reverse (10112001212201), we get a palindrome (20333211233302).

The spelling of 10221210021101 in words is "ten trillion, two hundred twenty-one billion, two hundred ten million, twenty-one thousand, one hundred one".