101111212102 has 16 divisors (see below), whose sum is σ = 151922120112. Its totient is φ = 50470541280.

The previous prime is 101111212099. The next prime is 101111212121. The reversal of 101111212102 is 201212111101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10383628 + ... + 10393360.

It is an arithmetic number, because the mean of its divisors is an integer number (9495132507).

Almost surely, 2^101111212102 is an apocalyptic number.

101111212102 is a deficient number, since it is larger than the sum of its proper divisors (50810908010).

101111212102 is an equidigital number, since it uses as much as digits as its factorization.

101111212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17943.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101111212102 its reverse (201212111101), we get a palindrome (302323323203).

The spelling of 101111212102 in words is "one hundred one billion, one hundred eleven million, two hundred twelve thousand, one hundred two".