101200000002111 has 12 divisors (see below), whose sum is σ = 146215192159192. Its totient is φ = 67449398493456.

The previous prime is 101200000002109. The next prime is 101200000002119. The reversal of 101200000002111 is 111200000002101.

It is a happy number.

It is not a de Polignac number, because 101200000002111 - 2¹ = 101200000002109 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200000002093 and 101200000002102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200000002119) 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, 1438977436 + ... + 1439047761.

Almost surely, 2^{101200000002111} is an apocalyptic number.

101200000002111 is a deficient number, since it is larger than the sum of its proper divisors (45015192157081).

101200000002111 is a wasteful number, since it uses less digits than its factorization.

101200000002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2878029110 (or 2878029107 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101200000002111 its reverse (111200000002101), we get a palindrome (212400000004212).

The spelling of 101200000002111 in words is "one hundred one trillion, two hundred billion, two thousand, one hundred eleven".