101222112121 has 24 divisors (see below), whose sum is σ = 113035849920. Its totient is φ = 90557812800.

The previous prime is 101222112119. The next prime is 101222112163. The reversal of 101222112121 is 121211222101.

It is not a de Polignac number, because 101222112121 - 2¹ = 101222112119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101222112095 and 101222112104.

It is not an unprimeable number, because it can be changed into a prime (101222112421) 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, 636451 + ... + 779431.

It is an arithmetic number, because the mean of its divisors is an integer number (4709827080).

Almost surely, 2^101222112121 is an apocalyptic number.

It is an amenable number.

101222112121 is a deficient number, since it is larger than the sum of its proper divisors (11813737799).

101222112121 is a wasteful number, since it uses less digits than its factorization.

101222112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143137 (or 143124 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101222112121 its reverse (121211222101), we get a palindrome (222433334222).

The spelling of 101222112121 in words is "one hundred one billion, two hundred twenty-two million, one hundred twelve thousand, one hundred twenty-one".