101212222109 has 8 divisors (see below), whose sum is σ = 102433245408. Its totient is φ = 99995491600.

The previous prime is 101212222081. The next prime is 101212222123. The reversal of 101212222109 is 901222212101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101212222109 - 2²⁸ = 100943786653 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 (101212225109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025747 + ... + 1120080.

It is an arithmetic number, because the mean of its divisors is an integer number (12804155676).

Almost surely, 2^101212222109 is an apocalyptic number.

It is an amenable number.

101212222109 is a deficient number, since it is larger than the sum of its proper divisors (1221023299).

101212222109 is a wasteful number, since it uses less digits than its factorization.

101212222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146395.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 101212222109 in words is "one hundred one billion, two hundred twelve million, two hundred twenty-two thousand, one hundred nine".