100102200111 has 20 divisors (see below), whose sum is σ = 149681968744. Its totient is φ = 66669382800.

The previous prime is 100102200097. The next prime is 100102200113. The reversal of 100102200111 is 111002201001.

It is a happy number.

It is not a de Polignac number, because 100102200111 - 2⁷ = 100102199983 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 = 100102200093 and 100102200102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100102200113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 522505 + ... + 687906.

Almost surely, 2^100102200111 is an apocalyptic number.

100102200111 is a deficient number, since it is larger than the sum of its proper divisors (49579768633).

100102200111 is a wasteful number, since it uses less digits than its factorization.

100102200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211444 (or 1211435 counting only the distinct ones).

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

Adding to 100102200111 its reverse (111002201001), we get a palindrome (211104401112).

The spelling of 100102200111 in words is "one hundred billion, one hundred two million, two hundred thousand, one hundred eleven".