101111211121 has 8 divisors (see below), whose sum is σ = 101820250944. Its totient is φ = 100402994640.

The previous prime is 101111211107. The next prime is 101111211137. The reversal of 101111211121 is 121112111101.

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

It is not a de Polignac number, because 101111211121 - 2⁹ = 101111210609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101111211161) 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, 41676 + ... + 451618.

It is an arithmetic number, because the mean of its divisors is an integer number (12727531368).

Almost surely, 2^101111211121 is an apocalyptic number.

It is an amenable number.

101111211121 is a deficient number, since it is larger than the sum of its proper divisors (709039823).

101111211121 is a wasteful number, since it uses less digits than its factorization.

101111211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411671.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 101111211121 its reverse (121112111101), we get a palindrome (222223322222).

The spelling of 101111211121 in words is "one hundred one billion, one hundred eleven million, two hundred eleven thousand, one hundred twenty-one".