101212111101 has 16 divisors (see below), whose sum is σ = 135513224000. Its totient is φ = 67193376768.

The previous prime is 101212111097. The next prime is 101212111103. The reversal of 101212111101 is 101111212101.

It is not a de Polignac number, because 101212111101 - 2² = 101212111097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742290 + ... + 867996.

It is an arithmetic number, because the mean of its divisors is an integer number (8469576500).

Almost surely, 2^101212111101 is an apocalyptic number.

It is an amenable number.

101212111101 is a deficient number, since it is larger than the sum of its proper divisors (34301112899).

101212111101 is a wasteful number, since it uses less digits than its factorization.

101212111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126828.

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

Adding to 101212111101 its reverse (101111212101), we get a palindrome (202323323202).

The spelling of 101212111101 in words is "one hundred one billion, two hundred twelve million, one hundred eleven thousand, one hundred one".