101202111111 has 4 divisors (see below), whose sum is σ = 134936148152. Its totient is φ = 67468074072.

The previous prime is 101202111089. The next prime is 101202111113. The reversal of 101202111111 is 111111202101.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 101202111111 - 2⁹ = 101202110599 is a prime.

It is a Duffinian number.

101202111111 is a modest number, since divided by 111111 gives 101202 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101202111113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16867018516 + ... + 16867018521.

It is an arithmetic number, because the mean of its divisors is an integer number (33734037038).

Almost surely, 2^101202111111 is an apocalyptic number.

101202111111 is a deficient number, since it is larger than the sum of its proper divisors (33734037041).

101202111111 is an equidigital number, since it uses as much as digits as its factorization.

101202111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33734037040.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 101202111111 its reverse (111111202101), we get a palindrome (212313313212).

The spelling of 101202111111 in words is "one hundred one billion, two hundred two million, one hundred eleven thousand, one hundred eleven".