10101201111 has 12 divisors (see below), whose sum is σ = 15224999088. Its totient is φ = 6441345504.

The previous prime is 10101201109. The next prime is 10101201133. The reversal of 10101201111 is 11110210101.

It is not a de Polignac number, because 10101201111 - 2¹ = 10101201109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10101201093 and 10101201102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101201161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24398830 + ... + 24399243.

It is an arithmetic number, because the mean of its divisors is an integer number (1268749924).

Almost surely, 2^10101201111 is an apocalyptic number.

10101201111 is a deficient number, since it is larger than the sum of its proper divisors (5123797977).

10101201111 is a wasteful number, since it uses less digits than its factorization.

10101201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48798102 (or 48798099 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 10101201111 its reverse (11110210101), we get a palindrome (21211411212).

The spelling of 10101201111 in words is "ten billion, one hundred one million, two hundred one thousand, one hundred eleven".