10221201011111 has 8 divisors (see below), whose sum is σ = 10463803782384. Its totient is φ = 9981370843200.

The previous prime is 10221201011101. The next prime is 10221201011237. The reversal of 10221201011111 is 11111010212201.

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 10221201011111 - 2²⁶ = 10221133902247 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 (10221201011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693143381 + ... + 693158126.

It is an arithmetic number, because the mean of its divisors is an integer number (1307975472798).

Almost surely, 2^{10221201011111} is an apocalyptic number.

10221201011111 is a deficient number, since it is larger than the sum of its proper divisors (242602771273).

10221201011111 is a wasteful number, since it uses less digits than its factorization.

10221201011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386301681.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 10221201011111 its reverse (11111010212201), we get a palindrome (21332211223312).

The spelling of 10221201011111 in words is "ten trillion, two hundred twenty-one billion, two hundred one million, eleven thousand, one hundred eleven".