101212221110121 has 24 divisors (see below), whose sum is σ = 164630631409920. Its totient is φ = 59362006514400.

The previous prime is 101212221110111. The next prime is 101212221110173. The reversal of 101212221110121 is 121011122212101.

It is a happy number.

101212221110121 is a `hidden beast` number, since 1 + 0 + 1 + 212 + 221 + 110 + 121 = 666.

It is not a de Polignac number, because 101212221110121 - 2⁶ = 101212221110057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101212221110094 and 101212221110103.

It is not an unprimeable number, because it can be changed into a prime (101212221110111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16489443186 + ... + 16489449323.

It is an arithmetic number, because the mean of its divisors is an integer number (6859609642080).

Almost surely, 2^{101212221110121} is an apocalyptic number.

101212221110121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101212221110121 is a deficient number, since it is larger than the sum of its proper divisors (63418410299799).

101212221110121 is a wasteful number, since it uses less digits than its factorization.

101212221110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32978892557 (or 32978892554 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 101212221110121 its reverse (121011122212101), we get a palindrome (222223343322222).

The spelling of 101212221110121 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".