101111202121 has 8 divisors (see below), whose sum is σ = 103584434688. Its totient is φ = 98638308000.

The previous prime is 101111202079. The next prime is 101111202149. The reversal of 101111202121 is 121202111101.

It is a happy number.

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 101111202121 - 2¹³ = 101111193929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101111202721) 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, 584016 + ... + 737086.

It is an arithmetic number, because the mean of its divisors is an integer number (12948054336).

Almost surely, 2^101111202121 is an apocalyptic number.

It is an amenable number.

101111202121 is a deficient number, since it is larger than the sum of its proper divisors (2473232567).

101111202121 is a wasteful number, since it uses less digits than its factorization.

101111202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169223.

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

Adding to 101111202121 its reverse (121202111101), we get a palindrome (222313313222).

The spelling of 101111202121 in words is "one hundred one billion, one hundred eleven million, two hundred two thousand, one hundred twenty-one".