1210100011111 has 8 divisors (see below), whose sum is σ = 1274470329600. Its totient is φ = 1145797777080.

The previous prime is 1210100011069. The next prime is 1210100011147. The reversal of 1210100011111 is 1111100010121.

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 1210100011111 - 2⁹ = 1210100010599 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 (1210100011151) 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, 16984621 + ... + 17055718.

It is an arithmetic number, because the mean of its divisors is an integer number (159308791200).

Almost surely, 2^{1210100011111} is an apocalyptic number.

1210100011111 is a deficient number, since it is larger than the sum of its proper divisors (64370318489).

1210100011111 is a wasteful number, since it uses less digits than its factorization.

1210100011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34042229.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 1210100011111 its reverse (1111100010121), we get a palindrome (2321200021232).

The spelling of 1210100011111 in words is "one trillion, two hundred ten billion, one hundred million, eleven thousand, one hundred eleven".