101123210221 has 16 divisors (see below), whose sum is σ = 114139238400. Its totient is φ = 88745406400.

The previous prime is 101123210213. The next prime is 101123210233. The reversal of 101123210221 is 122012321101.

It is a cyclic number.

It is not a de Polignac number, because 101123210221 - 2³ = 101123210213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101123210195 and 101123210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101123210281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2181675 + ... + 2227543.

It is an arithmetic number, because the mean of its divisors is an integer number (7133702400).

Almost surely, 2^101123210221 is an apocalyptic number.

101123210221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101123210221 is a deficient number, since it is larger than the sum of its proper divisors (13016028179).

101123210221 is a wasteful number, since it uses less digits than its factorization.

101123210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52820.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 101123210221 its reverse (122012321101), we get a palindrome (223135531322).

It can be divided in two parts, 1011 and 23210221, that added together give a palindrome (23211232).

The spelling of 101123210221 in words is "one hundred one billion, one hundred twenty-three million, two hundred ten thousand, two hundred twenty-one".