10101211221111 has 8 divisors (see below), whose sum is σ = 13591843845360. Its totient is φ = 6672359705472.

The previous prime is 10101211221097. The next prime is 10101211221121. The reversal of 10101211221111 is 11112211210101.

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

It is not a de Polignac number, because 10101211221111 - 2⁶ = 10101211221047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101211221121) 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, 15445276770 + ... + 15445277423.

It is an arithmetic number, because the mean of its divisors is an integer number (1698980480670).

Almost surely, 2^{10101211221111} is an apocalyptic number.

10101211221111 is a deficient number, since it is larger than the sum of its proper divisors (3490632624249).

10101211221111 is a wasteful number, since it uses less digits than its factorization.

10101211221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30890554305.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 10101211221111 its reverse (11112211210101), we get a palindrome (21213422431212).

The spelling of 10101211221111 in words is "ten trillion, one hundred one billion, two hundred eleven million, two hundred twenty-one thousand, one hundred eleven".