101110221121 has 32 divisors (see below), whose sum is σ = 128965052160. Its totient is φ = 77102371584.

The previous prime is 101110221103. The next prime is 101110221127. The reversal of 101110221121 is 121122011101.

It is a happy number.

It is not a de Polignac number, because 101110221121 - 2⁵ = 101110221089 is a prime.

It is a super-3 number, since 3×101110221121³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (101110221127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1451731 + ... + 1519783.

It is an arithmetic number, because the mean of its divisors is an integer number (4030157880).

Almost surely, 2^101110221121 is an apocalyptic number.

It is an amenable number.

101110221121 is a deficient number, since it is larger than the sum of its proper divisors (27854831039).

101110221121 is a wasteful number, since it uses less digits than its factorization.

101110221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68665.

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

Adding to 101110221121 its reverse (121122011101), we get a palindrome (222232232222).

The spelling of 101110221121 in words is "one hundred one billion, one hundred ten million, two hundred twenty-one thousand, one hundred twenty-one".